190,99 €
POLYMERS AND ADDITVES IN EXTREME ENVIRONMENTS Uniquely catalogs polymers and additives for uses in extreme applications such as in high or low pressure, high or low temperature, deep water and other special applications. The book includes chapters on aqueous environments including polymeric membranes for water purification and wastewater treatment; extreme pressure environments such as oils and lubricants for combustion engines as well as materials used for deep drilling such as surfactants, scale inhibitors, foaming agents, defoamers, propellants, fracturing fluids; extreme temperatures is subdivided in high and low temperature applications including gasketing materials, fuel tank sealants, expulsion bladders, fuel cell materials, and on the other hand, cold weather articles and thermoregulatory textiles; electrical applications include solar cell devices, triboelectric generators, fuel cell applications, electrochromic materials and batteries; medical applications include polymers for contact lenses, materials for tissue engineering, sophisticated drug delivery systems; aerospace applications include outer space applications such as low temperature and pressure, also cosmic rays, outgassing, and atomic erosion, as well as materials for electrostactic dissipative coatings and space suits; a final chapter detailing materials that are used in other extreme environments, such as adhesives, and polymeric concrete materials. Audience Materials and polymer scientists working in manufacturing and plastics, civil and mechanical engineers in various industries such as automotive, aircraft, space, marine and shipping, electronics, construction, electrical, etc. will find this book essential. The book will also serve the needs of engineers and specialists who have only a passing contact with polymers and additives in industrial setting need to know more.
Sie lesen das E-Book in den Legimi-Apps auf:
Seitenzahl: 616
Veröffentlichungsjahr: 2021
Cover
Title Page
Copyright
Preface
How to Use This Book
Index
Acknowledgements
1 Materials for Extreme Environments
References
2 Aqueous Environments
2.1 Water Purification
2.2 Polymer Membranes
References
3 Extreme Pressure Environments
3.1 Engine Oils
3.2 Extreme Pressure Lubricant Additives
3.3 Deep Drilling
3.4 Automotive Applications
References
4 Extreme Temperature
4.1 High-Temperature Environments
4.2 Low-Temperature Environments
4.3 Thermoregulatory Textile
References
5 Electrical Applications
5.1 Ionic Liquids
5.2 Solar Cell Devices
5.3 Triboelectric Nanogenerators
5.4 Fuel Cell Applications
5.5 Conductive Nanocomposites
5.6 Electrochromic Materials
5.7 Batteries
References
6 Medical Applications
6.1 Contact Lenses
6.2 Tissue Engineering
6.3 Drug Delivery Systems
6.4 Polymeric Materials for Surface Modification
6.5 Nanomaterials
6.6 Other Fabrication Methods
References
7 Drug Delivery
7.1 Biodegradable Polymers
7.2 Sustained Release Technology
7.3 Tissue Engineering
7.4 Tissue Markers
7.5 Hydrogels
7.6 Microporous Materials
7.7 Implants
7.8 Shape-Memory Polymers
7.9 Stents
7.10 Thermogelling Materials
7.11 Wound Dressings
7.12 Bioceramics
7.13 Conjugates
References
8 Aero and Space Applications
8.1 Technical Standards
8.2 Aerospace Applications
8.3 Outer Space Applications
References
9 Other Environments
9.1 Adhesives
9.2 Extreme pH
9.3 Concrete
References
Index
Acronyms
Chemicals
General Index
Also of Interest
End User License Agreement
Chapter 2
Figure 2.1 Apparatus for anaerobic wastewater treatment (6).
Figure 2.2 Monomers for a nanoporous network polymer.
Figure 2.3 Porphyrin.
Figure 2.4 Polymer with intrinsic microporosity (39).
Chapter 3
Figure 3.1 Monomers for a triblock copolymer.
Figure 3.2 Thermal activity of trisulfides and pentasulfides (4).
Figure 3.3 Adipate esters for defoamers.
Figure 3.3(cont) Phthalate esters for defoamers.
Figure 3.4 3-Allyl oxy-2-hydroxy-1-propanesulfonic acid.
Figure 3.5 Adhesion aids (96).
Figure 3.6 Diphenylsilane diol.
Figure 3.7 Amino silanes.
Figure 3.8 Curing retardants.
Figure 3.9 Adhesion promoters (99).
Figure 3.10 3,5-Dimethyl-1-octyn-3-ol.
Figure 3.11 Organophosphazenes (100).
Figure 3.12 Test fuel oil compounds.
Figure 3.13 Fluorosilicone gums (103).
Figure 3.14 2,5-Dimethyl-2,5-di(
tert
-butyl-peroxy)hexane.
Figure 3.15
N
,
N
’-di-
sec
-Butyl-
p
-phenylenediamine.
Figure 3.16 Organotitanium compounds.
Figure 3.17 Airbag device (110).
Figure 3.18 Adhesion aids (110).
Chapter 4
Figure 4.1 Condensation catalysts.
Figure 4.2 Hemin porcine.
Figure 4.3 Components for an elastomer.
Figure 4.4 Antioxidants.
Figure 4.5 Light stabilizer compounds.
Figure 4.6 Front face of a textile (11).
Chapter 5
Figure 5.1 Imidazolyl monomers.
Figure 5.2 Preparation method of ionic liquid monomers (9).
Figure 5.3 1-Butyl-3-methylimidazolium hexafluorophosphate.
Figure 5.4 Ionic liquid monomers.
Figure 5.5 Synthesis of 1-(
p
-vinylbenzyl)-3-butyl-imidazolium tetrafluoroborate ...
Figure 5.6 1-Methyl-3-pentylimidazolium bromide.
Figure 5.7 Compounds for solar cells.
Figure 5.8 Scheme of a polymer solar cell (51).
Figure 5.9 Naphthodithiophene compounds.
Figure 5.10 Acceptor and donor compounds.
Figure 5.11 Donor and acceptor monomers.
Figure 5.12 Triboelectric nanogenerator (67).
Figure 5.13 Target molecules.
Figure 5.14 Spherical triboelectric nanogenerator (90).
Figure 5.15 Structure of an S/PAN material (136).
Figure 5.16 Trithiocyanuric acid.
Figure 5.17 Synthesis of a sulfur-embedded poly(benzoxazine) polymer (140).
Figure 5.18 Non-conductive materials.
Chapter 6
Figure 6.1 Hydrophilic methacrylamide-based monomers.
Figure 6.2 Monomers for hydrophilic polymers.
Figure 6.3 Bisacrylamide monomers.
Figure 6.4 Polyfunctional methacrylate compounds.
Figure 6.5 Hydrophobic monomers.
Figure 6.6 Hydrophilic monomers.
Figure 6.7 Hydrophobic strengthening monomers.
Figure 6.8 Crosslinking monomers.
Figure 6.9 Monomers and comonomers.
Figure 6.10 Azo initiators.
Figure 6.10 (cont) Photoinitiators.
Figure 6.10 (cont) Photoinitiators.
Figure 6.11 Tinting agents.
Figure 6.12 2-Alkenyl azlactones.
Figure 6.12 (cont) Cycloalkyl azlactones.
Figure 6.13 2-Isopropenyl-4,4-dimethyl-2-oxazolin-5-one.
Figure 6.14 Diethylene glycol monoethyl ether.
Figure 6.15 Methyl enanthate or Methyl heptanoate.
Figure 6.16 Monomers for telechelic macromonomers (18).
Figure 6.17 Nucleating agents (27).
Figure 6.18 Cross-sectional view of a contact lens mold assembly (27).
Figure 6.19 Synthesis of
N
-carbomethoxymethyl-
N
-methacryloylamidopropyl-
N
,
N
-dime...
Figure 6.20 Sugars in hyaluronic acid.
Figure 6.21 Crosslinking agents.
Figure 6.22 Target biomarkers.
Figure 6.23 Prodan (1-(6-(Dimethylamino)naphthalen-2-yl)propan-1-one).
Figure 6.24 Synthesis of Quin-C18.
Figure 6.25 Block diagram of a sensor (46).
Figure 6.26 Hormones.
Figure 6.27 Chipless functional contact lens (47).
Figure 6.28 Electronic contact lens system (51).
Figure 6.29 Accessory device (51).
Figure 6.30 Beam pattern generated by an accessory device (51).
Figure 6.31 Special contact lens (59).
Figure 6.32 Decentered contact lens structure (67).
Figure 6.33 Front of a stabilized contact lens (68).
Figure 6.34 Carbamazepine.
Figure 6.35 Therapeutic agents for encapsulation.
Figure 6.36 Salbutamol.
Figure 6.37 Felodipine.
Figure 6.38 Human olfactory threshold tests (102).
Figure 6.39 Pharmacologically active agents.
Figure 6.40 Piroxicam.
Figure 6.41 Anti-inflammatory drugs.
Figure 6.42 Vancomycin (128).
Figure 6.43 Methylene di-
p
-phenyl-diisocyanate, poly(caprolactone) diol, and
N
,
N
...
Figure 6.44 Monomers for printing (131).
Figure 6.45 Rasagiline.
Figure 6.46 Loperamide.
Figure 6.47 Functional monomers (137).
Figure 6.48 Drugs for delivery.
Figure 6.49 Shadow printed lens (148).
Chapter 7
Figure 7.1 Decrease in molecular weight of PLA with time (12).
Figure 7.2 Hyaluronic acid.
Figure 7.3 Release of 5-aminosalicylic acid over time (35).
Figure 7.4 Light microscopy image of electrospun fibers (42).
Figure 7.5 Release profiles of tetracycline hydrochloride (43).
Figure 7.6 External surface of dual-pore scaffolds (47).
Figure 7.7 SEM micrograph of a foam (58).
Figure 7.8 Biologically active compounds.
Figure 7.8 (cont) Biologically active compounds.
Figure 7.8 (cont) Vasodilators.
Figure 7.8 (cont) Bronchodilators.
Figure 7.9 Epoxydation of dihydrocarvone.
Chapter 8
Figure 8.1 N,N’,N”-Tris(2-aminoethyl)-phosphoric acid triamide.
Figure 8.2 Epoxy resin matrices and curing agents (56).
Figure 8.3 Monomers for poly(sulfide).
Figure 8.4 Dithiol monomers for poly(thiol) sealants.
Figure 8.4 (cont) Epoxide monomers for poly(thiol) sealants.
Figure 8.4 (cont) Vinyl monomers for poly(thiol) sealants.
Figure 8.5 Monomer for a poly(thioether).
Figure 8.6 Monomers for shape-memory poly(urethane) composites.
Figure 8.7 Residual mass viz. ionic radiation (115).
Figure 8.8 Diamino monomers.
Figure 8.9 Anhydride and acid monomers.
Figure 8.10 Polymeric materials.
Chapter 9
Figure 9.1 Weight loss profiles viz. degradation time (12).
Figure 9.2 Siloxane and Silane compounds.
Figure 9.3 Synthesis of a crosslinked stationary phase (39).
Figure 9.4 Setting time with a styrene butadiene copolymer (54).
Figure 9.5 Setting time with a styrene acrylate rubber (54).
Figure 9.6 Compressive strength and polymer content (59).
Figure 9.7 Total porosity and interconnected porosity (59).
Chapter 1
Table 1.1 Homopolymers and uses.
Table 1.2 Copolymers and uses.
Table 1.3 Uses and homopolymers.
Chapter 2
Table 2.1 Phenol derivatives (7).
Table 2.2 Techniques for the removal of phenol (7).
Table 2.3 pervaporation of aqueous phenol solutions (39).
Table 2.4 Classification of membranes and membrane processes for separations via...
Table 2.5 Membrane separation technologies (8).
Table 2.6 Polymeric materials for membranes (8).
Chapter 3
Table 3.1 Temperature ranges.
Table 3.2 Lubricants for hot metal forming applications (7).
Table 3.3 Materials for petroleum drilling.
Table 3.4 Gel stabilizers.
Table 3.5 Thickeners.
Table 3.6 Mechanisms of fluid loss prevention.
Table 3.7 Types of clay stabilizers.
Table 3.8 Adhesion aids.
Table 3.9 Amino silanes (97).
Table 3.10 Curing retardants (98).
Table 3.11 Components of sponge-forming liquid silicone rubber (115).
Chapter 4
Table 4.1 Electrochemical properties of various gas diffusion electrodes (7).
Table 4.2 Components for a copolyester elastomer (9).
Table 4.3 Antioxidants (9).
Chapter 5
Table 5.1 Fields of use of ionic liquids (5).
Table 5.2 Monomers for ionic liquids (9).
Table 5.3 Ionic liquid monomers (24).
Table 5.4 Polymeric materials (51).
Table 5.5 Stability of materials.
Table 5.6 Materials for the polymer film (86).
Table 5.7 Studies with PPY-S composite electrodes (96).
Table 5.8 Non-conductive polymers (96).
Chapter 6
Table 6.1 History of contact lenses (2).
Table 6.2 Monomers for contact lenses.
Table 6.3 Hydrophilic methacrylamide-based monomers (20).
Table 6.4 Hydrophilic polymers (20).
Table 6.5 Multifunctional monomers (20).
Table 6.6 Monomers (17).
Table 6.7 Mechanical properties (17).
Table 6.8 Monomers (23).
Table 6.9 Initiators (23).
Table 6.10 Azlactone monomers (25).
Table 6.11 Nucleating agents (27).
Table 6.12 Crosslinking agents (35).
Table 6.13 Target biomarkers (38).
Table 6.14 Examples of target analytes (47).
Table 6.15 Common species in tear and blood (47).
Table 6.16 Optical design software.
Table 6.17 Inks and pigment levels (64).
Table 6.18 Additives for spraying agents (82).
Table 6.19 Polymer microsphere materials (92).
Table 6.20 Therapeutic agents for encapsulation (92).
Table 6.21 Polymers for stents (124).
Table 6.22 Anti-inflammatory drugs (124).
Table 6.23 Monomers for polymers for internal crosslinking (138).
Table 6.24 Anionic polyelectrolytes (147).
Table 6.25 Cationic polyelectrolytes (147).
Table 6.26 Capping agents (147).
Table 6.27 Drugs for delivery (147).
Table 6.28 Binder polymer for a colored base ink (149).
Table 6.29 Ink composition for contact lenses (151).
Table 6.30 Binder polymer for a clear base ink (148).
Chapter 7
Table 7.1 Natural polymers for drug delivery (6).
Table 7.2 Natural polymers for drug delivery (9).
Table 7.3 Natural polymers for delivery rate control (10).
Table 7.4 Degradation rate by acids (12).
Table 7.5 Properties of copolymers (49).
Table 7.6 Applications of biomarkers (49).
Table 7.7 Macromers for hydrogels (50).
Table 7.8 Methods for manufacture of porous biomaterials.
Table 7.9 Buffering agents for encapsulation (60).
Table 7.10 Tissue growth promoters (62).
Table 7.11 Biologically active agents (62).
Table 7.12 Hydrophobic polymers useful for stents (74).
Table 7.13 Polymers for conjugates (81).
Chapter 8
Table 8.1 Aerospace technical standards (1).
Table 8.2 Aircraft technical standards (1).
Table 8.3 Components for airplanes (41, 42).
Table 8.4 Advantages and disadvantages of various polymer types (43, 44).
Table 8.5 Monomers for poly(sulfide).
Table 8.6 Monomers for poly(thiol) sealants (62).
Table 8.7 Electrically conductive composite systems (44).
Table 8.8 Classification and properties of electroactive polymers (74–77).
Table 8.9 Thermoset matrix materials for shape-memory polymers (65).
Table 8.10 Vacuum properties of spacecraft materials (112).
Table 8.11 Atomic erosion (120).
Table 8.12 Diamino monomers (124).
Table 8.13 Anhydride and acid monomers (124).
Table 8.14 Polymeric materials (126).
Chapter 9
Table 9.1 Degradation time and change in molecular weight (12).
Table 9.2 Cationic polymers (15).
Table 9.3 Esterases and enzymes (15).
Table 9.4 Compressive strength of a polymer-modified concrete (49).
Table 9.5 Foaming system (60).
Cover
Table of Contents
Title Page
Copyright
Preface
Begin Reading
Index
Chemicals
General Index
Also of Interest
End User License Agreement
v
ii
iii
iv
xi
xii
xiii
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
Scrivener Publishing
100 Cummings Center, Suite 541J
Beverly, MA 01915-6106
Publishers at Scrivener
Martin Scrivener ([email protected])
Phillip Carmical ([email protected])
Johannes Karl Fink
Montanuniversität Leoben, Austria
This edition first published 2021 by John Wiley & Sons, Inc., 111 River Street, Hoboken, NJ 07030, USA and Scrivener Publishing LLC, 100 Cummings Center, Suite 541J, Beverly, MA 01915, USA
© 2021 Scrivener Publishing LLC
For more information about Scrivener publications please visit www.scrivenerpublishing.com.
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, except as permitted by law. Advice on how to obtain permission to reuse material from this title is available at http://www.wiley.com/go/permissions.
Wiley Global Headquarters
111 River Street, Hoboken, NJ 07030, USA
For details of our global editorial offices, customer services, and more information about Wiley products visit us at www.wiley.com.
Limit of Liability/Disclaimer of Warranty
While the publisher and authors have used their best efforts in preparing this work, they make no representations or warranties with respect to the accuracy or completeness of the contents of this work and specifically disclaim all warranties, including without limitation any implied warranties of merchantability or fitness for a particular purpose. No warranty may be created or extended by sales representatives, written sales materials, or promotional statements for this work. The fact that an organization, website, or product is referred to in this work as a citation and/or potential source of further information does not mean that the publisher and authors endorse the information or services the organization, website, or product may provide or recommendations it may make. This work is sold with the understanding that the publisher is not engaged in rendering professional services. The advice and strategies contained herein may not be suitable for your situation. You should consult with a specialist where appropriate. Neither the publisher nor authors shall be liable for any loss of profit or any other commercial damages, including but not limited to special, incidental, consequential, or other damages. Further, readers should be aware that websites listed in this work may have changed or disappeared between when this work was written and when it is read.
Library of Congress Cataloging-in-Publication Data
ISBN 978-1-119-85137-0
Cover image: Pixabay.ComCover design by Russell Richardson
Set in size of 11pt and Minion Pro by Manila Typesetting Company, Makati, Philippines
Printed in the USA
10 9 8 7 6 5 4 3 2 1
This book focuses on polymers for their uses under extreme conditions.
The book begins with a chapter about polymers that are used in extreme environments and includes tables listing their special uses. This allows the interested user to quickly find out about polymeric materials. Related issues will be detailed in subsequent chapters. In addition, if the reader is interested in how particular types of polymers can be used, reverse sorted tables are given. After this introductory text, special issues will be given.
There is a chapter about aqueous environments in which polymeric membranes for water purification and wastewater treatment are described.
In a chapter dealing with extreme pressure environments, oils for combustion engines and lubricants in such environments are described. Furthermore, materials that are used for deep drilling, such as surfactants, scale inhibitors, foaming agents, defoamers, proppants, fracturing fluids, and others, are described.
Finally, this chapter describes the materials used for automotive applications where extreme pressure occurs, in particular their use in airbags.
Next, a chapter deals with materials for extreme temperatures, which are subdivided into high and low temperature applications. These are gasketing materials, fuel tank sealants, expulsion bladders, fuel cell materials; and conversely, cold weather articles and thermoregulatory textiles.
After these basic issues concerning extreme pressure and temperature, the following chapters deal with special uses.
Electrical applications are detailed in a chapter. These are solar cell devices, triboelectric generators, fuel cell applications, electrochromic materials, and batteries.
A chapter dealing with medical applications discusses polymers for contact lenses, materials for tissue engineering; and in another chapter, sophisticated drug delivery systems are detailed.
Another chapter deals with aero and space applications. In outer space applications, besides low temperature and pressure, also cosmic rays, outgassing, and atomic erosion are problematic. Materials for electrostactic dissipative coatings and space suits are also detailed in this chapter.
Finally, the last chapter deals with materials that are used in other extreme environments, such as adhesives and polymeric concrete materials.
This book focuses on the literature of the past decade. Beyond education, it will serve the needs of industry engineers and specialists who have only a passing knowledge of the plastics and composites industries but need to know more.
Utmost care has been taken to present reliable data. Because of the vast variety of material presented herein, however, the text cannot be complete in all aspects, and it is recommended that the reader study the original literature for more complete information.
The reader should note that mostly US patents have been cited where available, but not the corresponding equivalent patents in other countries. For this reason, the author cannot assume responsibility for the completeness, validity or consequences of the use of the material presented herein. Every attempt has been made to identify trademarks; however, there were some that the author was unable to locate.
There are three indices: an index of acronyms, an index of chemicals, and a general index.
In the index of chemicals, compounds that occur extensively, e.g., “acetone,” are not included at every occurrence, but rather when they appear in an important context.
I am indebted to our university librarians, Dr. Christian Hasenhüttl, Margit Keshmiri, Friedrich Scheer, Christian Slamenik, Renate Tschabuschnig, and Elisabeth Groß for their support in literature acquisition. I also want to express my gratitude to all the scientists who have carefully published their results concerning the topics dealt with herein. This book could not have been otherwise compiled. Last, but not least, I want to thank the publisher, Martin Scrivener, for his abiding interest and help in the preparation of the text. In addition, my thanks go to Jean Markovic, who made the final copyedit with utmost care.
Johannes FinkLeoben, July 22, 2021
The major applications in which polymers have been subjected to extreme stress are aerospace, geothermal and undersea exposure. All of these environments require an extraordinary behavior of coatings, seals or adhesives (1).
Aerospace uses have received a lot of attention; therefore, the research efforts of the past twenty-five years have concentrated on the development of polymer backbones that are resistant to high temperatures and unusual chemical environments.
Geothermal energy production also has extreme temperature requirements, but in an environment quite different from aerospace. Here, hydrolytic and reductive stresses are seen rather than oxidative stress: therefore, less exotic materials are used, including rubber blends and polymer-concrete composites.
In undersea electronic applications, time is the greatest enemy of a seal meant to provide a barrier to water intrusion. Achieving a fifteen-year lifetime of a rubber-sealed device is quite difficult using economical materials. Here, some additives in rubber can be critical, as are processing and adhesion technology. The most challenging task is developing valid accelerated aging techniques to estimate useful life (1).
In the tables below, the polymeric materials are listed and basic uses are briefly given. The uses are detailed in subsequent chapters. Homopolymers and their uses are listed in Table 1.1. Copolymers and their uses are listed in Table 1.2. In addition, in order to make the basic uses of polymeric types easier to see, the basic uses of homopolymers are listed in Table 1.3.
Table 1.1 Homopolymers and uses.
Polymer
Usage
References
Acacia
Drug delivery
(2)
Acrylonitrile butadiene styrene
Spacecraft
(3)
Acylated insulin
Microspheres
(4)
Agar
Drug delivery
(2)
Albumin
Microspheres
(4)
Alginate
Drug delivery
(2)
Allyl diglycol carbonate
Spacecraft
(3)
Carboxymethyl cellulose
Pore-forming
(5)
Carboxymethyl cellulose
Stents
(6)
Carrageenan
Drug delivery
(2)
Cellophane
Stents
(6)
Cellulose acetate
Spacecraft
(3)
Cellulose acetate
Membranes
(7)
Cellulose acetate butyrate
Stents
(6)
Cellulose acetate
Stents
(6)
Cellulose butyrate
Stents
(6)
Cellulose nitrate
Membranes
(7)
Cellulose nitrate
Stents
(6)
Cellulose propionate
Stents
(6)
Cellulose
Drug delivery
(2)
Cellulose
Stents
(6)
Chitosan
Drug delivery
(2)
Chitosan
Microspheres
(4)
Chitosan
Stents
(6)
Collagen
Microspheres
(4)
Collagen
Stents
(6)
Collagen
Tissue marker
Crystalline poly(vinylfluoride) with white pigment
Spacecraft
(3)
Dextran
Drug delivery
(2)
Dextrin
Drug delivery
(2)
Elastin
Microspheres
(4)
Epoxide or epoxy resin
Spacecraft
(3)
Epoxy Araldite A
Spacecraft, Adhesive
(8)
Epoxy. Araldite F
Spacecraft, Potting
(8)
Epoxy-glass laminate
Spacecraft, Circuit board
(8)
Fibrin
Microspheres
(4)
Fibrinogen
Stents
(6)
Gelatin
Microspheres
(4)
Gelatin
Tissue marker
Gellan Gum
Drug delivery
(2)
Glycoproteins
Microspheres
(4)
Guar Gum
Drug delivery
(2)
Heparin
Contact lenses
(9)
Hyaluronic acid
Stents
(6)
Hydroxylpropyl cellulose
Pore-forming agent
(5)
Hydroxypropyl methyl cellulose
Bilayer tablets
(10)
Inulin
Drug delivery
(2)
Isotactic poly(propylene)
Membranes
(11)
Kapton H film
Spacecraft, Thermal insulation
(8)
Karaya Gum
Drug delivery
(2)
Konjac Glucomannan
Drug delivery
(2)
Laminin
Microspheres
(4)
Locust Bean Gum
Drug delivery
(2)
Nylon 66 Poly(caprolactam)
Stents
(6)
Pectin
Drug delivery
(2)
PETP Mylar film
Spacecraft, Thermal insulation
(8)
Perfluorosulfonic acid polymer
Membranes
(7)
Poly(
D
,
L
-lactic acid)
Stents
(12)
Poly(
D
-glucosamine)
Cationic polyelectrolyte
(13)
Poly(
L
-lactic acid)
Stents
(12)
Poly(
L
-lactic acid)
Stents
(6)
Poly(
L
-lysine)
Triboelectricity
(14)
Poly(
N
,
N
-diethyl acrylamide)
Contact lenses
(9)
Poly(
N
,
N
-dimethyl acrylamide)
Contact lenses
(9)
Poly(
N
-vinyl-2-pyrrolidone)
Pore-forming agent
(5)
Poly(
N
-acetylglucosamine)
Stents
(6)
Poly(
N
-isopropyl acrylamide)
Contact lenses
(9)
Poly(
N
-methyl-
N
-vinyl acetamide)
Contact lenses
(9)
Poly(
N
-methylvinylamine)
Cationic polyelectrolyte
(13)
Poly(
N
-vinyl acetamide)
Contact lenses
(9)
Poly(
N
-vinyl formamide)
Contact lenses
(9)
Poly(
N
-vinyl pyrrolidone)
Contact lenses
(9)
Poly(
N
-vinyl pyrrolidone)
Wound dressing
(15)
Poly(
N
-vinyl-2-caprolactam)
Contact lenses
(9)
Poly(
N
-vinyl-2-piperidone)
Contact lenses
(9)
Poly(
N
-vinyl-3-ethyl-2-pyrrolidone)
Contact lenses
(9)
Poly(
N
-vinyl-3-methyl-2-caprolactam)
Contact lenses
(9)
Poly(
N
-vinyl-3-methyl-2-piperidone)
Contact lenses
(9)
Poly(
N
-vinyl-4,5-dimethyl-2-pyrrolidone)
Contact lenses
(9)
Poly(
N
-vinyl-4-methyl-2-caprolactam)
Contact lenses
(9)
Poly(
N
-vinyl-4-methyl-2-piperidone)
Contact lenses
(9)
Poly-(
p
-phenylene terephthalamide)
Spacecraft
(3)
Poly(
p
-phenylene-2.6-benzobisoxazole)
Spacecraft
(3)
Poly(1,6)-α-
D
-glucose sulfate
Anionic electrolyte
(13)
Poly(1-butyl-3-vinylimidazolium hexafluorophosphate)
Electrolytes
(16)
Poly(2-dimethylaminoethyl methacrylate)
Cationic electrolyte
(13)
Poly(2-ethyl oxazoline)
Contact lenses
(9)
Poly(2-hydroxy-3-methacryloxy-propyltrimethyl-ammonium chloride)
Cationic electrolyte
(13)
Poly(2-hydroxyethyl methacrylate)
Contact lenses
(17)
Poly(2-hydroxyethyl methacrylate)
Contact lenses
(18)
Poly(2-methacryloxyethyltrimethyl-ammonium bromide)
Cationic electrolyte
(13)
Poly(2-vinyl-1 methylpyridinium bromide)
Cationic electrolyte
(13)
Poly(2-vinylimidazole)
Contact lenses
(9)
Poly(2-vinylpyridine
N
-oxide)
Cationic electrolyte
(13)
Poly(2-vinylpyridine)
Cationic electrolyte
(13)
Poly(3-chloro-2-hydroxypropyl-2-methacroxyethyldimethyl ammonium chloride)
Cationic electrolyte
(13)
Poly(3-hexylthiophene)
Heterojunction solar cells
(19, 20)
Poly(4-aminostyrene)
Cationic electrolyte
(13)
Poly(4-hydroxy-L-proline ester)
Stents
(12)
Poly(4-vinyl-1 methylpyridinium bromide)
Cationic electrolyte
(13)
Poly(4-vinylbenzyltrimethylammonium chloride)
Cationic electrolyte
(13)
Poly(4-vinylpyridine
N
-oxide)
Cationic electrolyte
(13)
Poly(4-vinylpyridine) Poly(acetal)
Spacecraft, Insulating parts
(8)
Poly(acetylene)
Photovoltaics
(21)
Poly(acryl esters)
Contact lenses
(9)
Poly(acrylamide)
Capping agent
(13)
Poly(acrylamide/2-methacryloxyethyl-trimethylammonium bromide)
Cationic electrolyte
(13)
Poly(acrylate)
Contact lenses
(9)
Poly(acrylic acid)
Lubricant Additives
(22)
Poly(acrylic acid)
Anionic electrolyte
(13)
Poly(acrylic acid)
Bilayer tablets
(10)
Poly(acrylonitrile)
Spacecraft
(3)
Poly(acrylonitrile)
Membranes
(7)
Poly(acryloyl morpholine)
Contact lenses
(9)
Poly(allylamine hydrochloride)
Cationic electrolyte
(13)
Poly(amic acid)
Spacecraft Coating
(23)
Poly(amide) 6 or nylon 6
Spacecraft
(3)
Poly(amide) 66 or nylon 66
Spacecraft
(3)
Poly(aniline)
Electrically conductive polymer
(24–29)
Poly(benzimidazole)
Spacecraft
(3)
Poly(benzimidazole)
Garment system
(30)
Poly(benzoxazine)
Cathode polymer
(31)
Poly(butylene terephthalate)
Spacecraft
(3)
Poly(caprolactone)
Stents
(6)
Poly(caprolactone)
Tissue marker
Poly(carbonate)
Contact lenses
(32)
Poly(carbosilane)
Preceramic precursor
(33, 34)
Poly(carboxylate)
Surfactant
(35)
Poly(chonroitin-4-sulfate)
Microspheres
(4)
Poly(diallyldimethylammonium chloride)
Cationic electrolyte
(13)
Poly(dimethyl siloxane)
Capping agent
(13)
Poly(dimethyl siloxane)
Ceramics
(36)
Poly(dimethyl siloxane)
Rubber sponge
(37, 38)
Poly(dioxanone)
Tissue marker
Poly(dopamine)
Batteries
(39)
Poly(etherimide)
Spacecraft
(3)
Poly(etherimide)
Membranes
(7)
Poly(ethersulfone)
Membranes
(7)
Poly(ethylene acrylate)
Stents
(6)
Poly(ethylene amide)
Stents
(6)
Poly(ethylene glycol)
Capping agent
(13)
Poly(ethylene glycol)
Microspheres
(4)
Poly(ethylene glycol)
Pore-forming agent
(5)
Poly(ethylene glycol)dimethyl ether
Capping agent
(13)
Poly(ethylene glycol)mono methyl ether
Capping agent
(13)
Poly(ethylene imine)
Cationic electrolyte
(13)
Poly(ethylene oxide)
Spacecraft
(3)
Poly(ethylene oxide)
Capping agent
(13)
Poly(ethylene oxide)
Contact lenses
(9)
Poly(ethylene terephthalate)
Membranes
(7)
Poly(ethylene)
Spacecraft
(3)
Poly(ethylene) glycol dimethacrylate
Contact lenses
(40)
Poly(ethylene-dioxythophene)
Electrically conductive
(29)
Poly(glycolic acid)
Stents
(6)
Poly(glycolide)
Microspheres
(4)
Poly(glycolide)s
Tissue marker
Poly(heparan sulfate)
Microspheres
(4)
Poly(hexamethylene oxamate)
Microspheres
(4)
Poly(hydroxybutyrate)
Stents
(12)
Poly(hydroxybutyrate)
Stents
(6)
Poly(hydroxymethylethylene hydroxymethylacetal)
Biodegradable
(41)
Poly(hydroxymethylethylene hydroxymethylacetal)
Contact lenses
(17)
Poly(hydroxyvalerate)
Stents
(12)
Poly(hydroxyvalerate)
Stents
(6)
Poly(imide)
Spacecraft
(3)
Poly(imide)
Spacecraft, Solid lubricant
(8)
Poly(imide) (BPDA)
Spacecraft
(3)
Poly(imide) (PMDA)
Spacecraft
(3)
Poly(imide) resin, high temperature
Spacecraft
(3)
Poly(isopropyl
N
-polyacrylamide)
Contact lenses
(42)
Poly(lactide)
Microspheres
(4)
Poly(lactide)s
Tissue marker
Poly(lauryl methacrylate)
Anionic electrolyte
(13)
Poly(lysine)
Contact lenses
(43)
Poly(maleic acid)
Anionic electrolyte
(13)
Poly(metaphosphate)
Scale inhibitors
(44, 45)
Poly(methacrylic acid)
Lubricant Additives
(22)
Poly(methacrylic acid)
Anionic electrolyte
(13)
Poly(methyl methacrylate)
Spacecraft
(3)
Poly(methyl methacrylate)
Anionic electrolyte
(13)
Poly(methyl methacrylate)
Capping agent
(13)
Poly(morpholinedione)
Microspheres
(4)
Poly(organo siloxane)
Airbag
(46)
Poly(ornithine)
Contact lenses
(43)
Poly(oxyethylene)
Capping agent
(13)
Poly(oxymethylene)
Spacecraft
(3)
Poly(phenylene isophthalate)
Spacecraft
(3)
Poly(phenylene oxide)
Membranes
(7)
Poly(phenylene vinylene)
Photovoltaics
(47)
Poly(phosphate)
Lubricant Additives
(48)
Poly(phosphazene)
Microspheres
(4)
Poly(propylene glycol)
Capping agent
(13)
Poly(propylene oxide)
Capping agent
(13)
Poly(propylene)
Spacecraft
(3)
Poly(pyrrole)
Electrically conductive polymer
(24–29)
Poly(saccharide)
Thickeners
Poly(saccharide)
Contact lenses
(9)
Poly(sebacic anhydride)
Microspheres
(4)
Poly(silazane)
Preceramic precursor
(33, 34)
Poly(siloxane)
Contact lenses
Poly(styrene sulfonic acid)
Anionic electrolyte
(13)
Poly(styrene)
Spacecraft
(3)
Poly(styrene)
Stents
(6)
Poly(styrenephosphoric acid)
Anionic electrolyte
(13)
Poly(sulfide)
Lubricant Additives
(49)
Poly(sulfide)
Batteries
(50)
Poly(sulfide)
Fuel tank
(51)
Poly(sulfone)
Spacecraft
(3)
Poly(tetrafluoroethylene)
Membranes
(7)
Poly(tetramethylene oxide)bis-4-aminobenzoate
Cationic electrolyte
(13)
Poly(tetramethyleneoxide)
Shape memory
(52)
Poly(thiophene)
Electrically conductive polymer
(24–28)
Poly(trimethylene carbonate)
Stents
(6)
Poly(urethane)
Spacecraft
(3)
Poly(urethane) composite
Shape memory
(53, 54)
Poly(urethane) H 32
Spacecraft, Conducting Paint
(8)
Poly(urethane) Z 306
Spacecraft, Paint
(8)
Poly(urethane)
Scaffold
(55)
Poly(vinyl acetate)
Capping agent
(13)
Poly(vinyl acetate)
Clay stabilizers
Poly(vinyl acetate)
Stents
(6)
Poly(vinyl alcohol) hydrogel
Contact lenses
(56)
Poly(vinyl alcohol)
Capping agent
(13)
Poly(vinyl alcohol)
Contact lenses
(9)
Poly(vinyl fluoride)
Spacecraft
(3)
Poly(vinyl methyl ether)
Capping agent
(13)
Poly(vinyl methyl ether)
Stents
(6)
Poly(vinyl pyrrolidone)
Capping agent
(13)
Poly(vinyl pyrrolidone)
Contact lenses
(17)
Poly(vinylamine)hydrochloride
Cationic electrolyte
(13)
Poly(vinylidene chloride)
Stents
(6)
Poly(vinylidene fluoride)
Membranes
(7)
Poly(vinylidene fluoride)
Electroactive
(57–60)
Poly(vinylphosphoric acid)
Anionic electrolyte
(13)
Poly(vinylsulfonic acid)
Anionic electrolyte
(13)
Polymeric ionic liquids
(61)
Polyolefin
Spacecraft, Heat-shrink sleeving
(8)
Psyllium Husk
Drug delivery
(2)
Pyrolytic graphite
Spacecraft
(3)
Rayon triacetate
Stents
(6)
Rayon
Stents
(6)
Silicone elastomer
Spacecraft, Seals
(8)
Siloxane poly(ether)
Wetting agent
(46)
Soy protein
Microspheres
(4)
Scleroglucan
Drug delivery
(2)
Starch
Drug delivery
(2)
Starch
Stents
(6)
Teflon
Spacecraft, Wire sleeving
(8)
Teflon film
Spacecraft, Thermal insulation
(8)
Teflon-glass-MoS
2
Spacecraft, Bearings
(8)
Viton A
Spacecraft, Seals
(8)
Xanthan Gum
Drug delivery
(2)
Table 1.2 Copolymers and uses.
Polymer
Usage
References
1,5-Dioxepan-2-one
L
-lactide copolymers
Microspheres
(4)
3-Oxacaprolactone copolymers
Microspheres
(4)
6-Caprolactone copolymers
Microspheres
(4)
Acrylate copolymer
pH-Responsive Thickeners
(62)
Acrylic acid ethyl acrylate tristyrylpoly(ethyleneoxy)
x
methyl carboxyl terminated poly(butadiene/acrylonitrile)
Anionic electrolyte
(13)
Copolyester elastomer
Cold weather articles
(63)
Methacrylate triblock copolymer
Engine oils
(64)
Pluronic™
Surfactant
(65)
Poly(
D
,
L
-lactic acid-
co
-
L
-as-partic acid)
Stents
(12)
Poly(
D
,
L
-lactic acid-
co
-ethylene glycol)
Stents
(12)
Poly(
D
,
L
-lactide-
co
-caprolactone)
Implant
Poly(
L
-lactic acid-
co
-
L
-aspartic acid)
Stents
(12)
Poly(
L
-lactic acid-
co
-ethylene glycol)
Stents
(12)
Poly(
N
-vinylpyrrolidone/2-dimethylaminoethyl methacrylate)
Cationic electrolyte
(13)
Poly(1,10-decanediol-
co
-
L-
lactic acid)
Stents
(12)
Poly(1,10-decanodiol-
co
-
D
,
L-
lactic acid)
Stents
(12)
Poly(1,2,6-hexanetriol-
co
-trimethylorthoacetate)
Stents
(12)
Poly(butadiene/maleic acid)
Anionic electrolyte
(13)
Poly(butyl acrylate/acrylic acid)
Anionic electrolyte
(13)
Poly(ether urethane)
Shape-memory foams
(66)
Poly(ethylene glycol-
co
-butylene terephthalate)
Stents
(12)
Poly(ethylene/maleic acid)
Anionic electrolyte
(13)
Poly(hydroxybutyrate-
co-
valerate)
Stents
(6, 12)
Poly(lactide-
co
-glycolide)
Stents
(6)
Poly(lactide-
co
-glycolide)
Wound dressing
(15)
Poly(maleic acid-
co
-sebacic acid)
Stents
(12)
Poly(methyl methacrylate/methacrylic acid)
Anionic electrolyte
(13)
Poly(stearyl methacrylate)-poly(benzyl Poly(vinyl methyl ether/maleic acid)
Anionic electrolyte
(13)
Poly(vinyl methyl ether/-mono ethyl maleate)
Anionic electrolyte
(13)
Poly(vinyl methyl ether/-monobutyl maleate)
Anionic electrolyte
(13)
Poly(vinyl methyl ether/-mono-iso-propyl maleate)
Anionic electrolyte
(13)
Table 1.3 Uses and homopolymers.
Usage
Polymer
References
Airbag
Poly(organo siloxane)
(46)
Anionic electrolyte
Poly(1,6)-α-
D
-glucose sulfate
(13)
Anionic electrolyte
Poly(acrylic acid)
(13)
Anionic electrolyte
Poly(lauryl methacrylate)
(13)
Anionic electrolyte
Poly(maleic acid)
(13)
Anionic electrolyte
Poly(methacrylic acid)
(13)
Anionic electrolyte
Poly(methyl methacrylate)
(13)
Anionic electrolyte
Poly(styrene sulfonic acid)
(13)
Anionic electrolyte
Poly(styrenephosphoric acid)
(13)
Anionic electrolyte
Poly(vinylphosphoric acid)
(13)
Batteries
Poly(dopamine)
(39)
Batteries
Poly(sulfide)
(50)
Bilayer tablets
Hydroxypropyl methyl cellulose
(10)
Bilayer tablets
Poly(acrylic acid)
(10)
Biodegradable
Poly(hydroxymethylethylene hydroxymethylacetal)
(41)
Capping agent
Poly(acrylamide)
(13)
Capping agent
Poly(dimethyl siloxane)
(13)
Capping agent
Poly(ethylene glycol)
(13)
Capping agent
Poly(ethylene glycol)dimethyl ether
(13)
Capping agent
Poly(ethylene glycol)mono methyl ether
(13)
Capping agent
Poly(ethylene oxide)
(13)
Capping agent
Poly(methyl methacrylate)
(13)
Capping agent
Poly(oxyethylene)
(13)
Capping agent
Poly(propylene glycol)
(13)
Capping agent
Poly(propylene oxide)
(13)
Capping agent
Poly(vinyl acetate)
(13)
Capping agent
Poly(vinyl alcohol)
(13)
Capping agent
Poly(vinyl methyl ether)
(13)
Capping agent
Poly(vinyl pyrrolidone)
(13)
Cathode polymer
Poly(benzoxazine)
(31)
Cationic electrolyte
Poly(2-dimethylaminoethyl methacrylate)
(13)
Cationic electrolyte
Poly(2-hydroxy-3-methacryloxypropyltrimethyl-ammonium chloride)
(13)
Cationic electrolyte
Poly(2-methacryloxyethyltrimethyl-ammonium bromide)
(13)
Cationic electrolyte
Poly(2-vinyl-1 methylpyridinium bromide)
(13)
Cationic electrolyte
Poly(2-vinylpyridine
N
-oxide)
(13)
Cationic electrolyte
Poly(2-vinylpyridine)
(13)
Cationic electrolyte
Poly(3-chloro-2-hydroxypropyl-2-methacroxyethyldimethyl ammonium chloride)
(13)
Cationic electrolyte
Poly(4-aminostyrene)
(13)
Cationic electrolyte
Poly(4-vinyl-1 methylpyridinium bromide)
(13)
Cationic electrolyte
Poly(4-vinylbenzyltrimethyl-ammonium chloride)
(13)
Cationic electrolyte
Poly(4-vinylpyridine
N
-oxide)
(13)
Cationic electrolyte
Poly(acrylamide/2-methacryloxyethyl-trimethylammonium bromide)
(13)
Cationic electrolyte
Poly(allylamine hydrochloride)
(13)
Cationic electrolyte
Poly(diallyldimethylammonium chloride)
(13)
Cationic electrolyte
Poly(ethylene imine)
(13)
Cationic electrolyte
Poly(tetramethylene oxide)bis-4-aminobenzoate
(13)
Cationic electrolyte
Poly(vinylamine)hydrochloride
(13)
Cationic polyelectrolyte
Poly(
D
-glucosamine)
(13)
Cationic polyelectrolyte
Poly(
N
-methylvinylamine)
(13)
Ceramics
Poly(dimethyl siloxane)
(36)
Clay stabilizers
Poly(vinyl acetate)
Contact lenses
Heparin
(9)
Contact lenses
Poly(
N
,
N
-diethyl acrylamide)
(9)
Contact lenses
Poly(
N
,
N
-dimethyl acrylamide)
(9)
Contact lenses
Poly(
N
-isopropyl acrylamide)
(9)
Contact lenses
Poly(
N
-methyl-
N
-vinyl acetamide)
(9)
Contact lenses
Poly(
N
-vinyl acetamide)
(9)
Contact lenses
Poly(
N
-vinyl formamide)
(9)
Contact lenses
Poly(
N
-vinyl pyrrolidone)
(9)
Contact lenses
Poly(
N
-vinyl-2-caprolactam)
(9)
Contact lenses
Poly(
N
-vinyl-2-piperidone)
(9)
Contact lenses
Poly(
N
-vinyl-3-ethyl-2-pyrrolidone)
(9)
Contact lenses
Poly(
N
-vinyl-3-methyl-2-caprolactam)
(9)
Contact lenses
Poly(
N
-vinyl-3-methyl-2-piperidone)
(9)
Contact lenses
Poly(
N
-vinyl-4,5-dimethyl-2-pyrrolidone)
(9)
Contact lenses
Poly(
N
-vinyl-4-methyl-2-caprolactam)
(9)
Contact lenses
Poly(
N
-vinyl-4-methyl-2-piperidone)
(9)
Contact lenses
Poly(2-ethyl oxazoline)
(9)
Contact lenses
Poly(2-hydroxyethyl methacrylate)
(17)
Contact lenses
Poly(2-hydroxyethyl methacrylate)
(18)
Contact lenses
Poly(2-vinylimidazole)
(9)
Contact lenses
Poly(acryl esters)
(9)
Contact lenses
Poly(acrylate)
(9)
Contact lenses
Poly(acryloyl morpholine)
(9)
Contact lenses
Poly(carbonate)
(32)
Contact lenses
Poly(ethylene oxide)
(9)
Contact lenses
Poly(ethylene) glycol dimethacrylate
(40)
Contact lenses
Poly(hydroxymethylethylene hydroxymethylacetal)
(17)
Contact lenses
Poly(isopropyl
N
-polyacrylamide)
(42)
Contact lenses
Poly(lysine)
(43)
Contact lenses
Poly(ornithine)
(43)
Contact lenses
Poly(saccharide)
(9)
Contact lenses
Poly(siloxane)
Contact lenses
Poly(vinyl alcohol)
(9)
Contact lenses
Poly(vinyl alcohol) hydrogel
(56)
Contact lenses
Poly(vinyl pyrrolidone)
(17)
Drug delivery
Acacia
(2)
Drug delivery
Agar
(2)
Drug delivery
Alginate
(2)
Drug delivery
Carrageenan
(2)
Drug delivery
Cellulose
(2)
Drug delivery
Chitosan
(2)
Drug delivery
Dextran
(2)
Drug delivery
Dextrin
(2)
Drug delivery
Gellan Gum
(2)
Drug delivery
Guar Gum
(2)
Drug delivery
Inulin
(2)
Drug delivery
Karaya Gum
(2)
Drug delivery
Konjac Glucomannan
(2)
Drug delivery
Locust Bean Gum
(2)
Drug delivery
Pectin
(2)
Drug delivery
Psyllium Husk
(2)
Drug delivery
Scleroglucan
(2)
Drug delivery
Starch
(2)
Drug delivery
Xanthan Gum
(2)
Electrically conductive
Poly(ethylene-dioxythophene)
(29)
Electrically conductive polymer
Poly(aniline)
(24–29)
Electrically conductive polymer
Poly(pyrrole)
(24–29)
Electrically conductive polymer
Poly(thiophene)
(24–28)
Electroactive
Poly(vinylidene fluoride)
(57–60)
Electrolytes
Poly(1-butyl-3-vinylimidazolium hexafluorophosphate)
(16)
Fuel tank
Poly(sulfide)
(51)
Garment system
Poly(benzimidazole)
(30)
Heterojunction solar cells
Poly(3-hexylthiophene)
(19, 20)
Lubricant Additives
Poly(acrylic acid)
(22)
Lubricant Additives
Poly(methacrylic acid)
(22)
Lubricant Additives
Poly(phosphate)
(48)
Lubricant Additives
Poly(sulfide)
(49)
Membranes
Polymeric ionic liquids
(61)
Membranes
Cellulose acetate
(7)
Membranes
Cellulose nitrate
(7)
Membranes
Isotactic poly(propylene)
(11)
Membranes
Perfluorosulfonic acid polymer
(7)
Membranes
Poly(acrylonitrile)
(7)
Membranes
Poly(etherimide)
(7)
Membranes
Poly(ethersulfone)
(7)
Membranes
Poly(ethylene terephthalate)
(7)
Membranes
Poly(phenylene oxide)
(7)
Membranes
Poly(tetrafluoroethylene)
(7)
Membranes
Poly(vinylidene fluoride)
(7)
Microspheres
Acylated insulin
(4)
Microspheres
Albumin
(4)
Microspheres
Chitosan
(4)
Microspheres
Collagen
(4)
Microspheres
Elastin
(4)
Microspheres
Fibrin
(4)
Microspheres
Gelatin
(4)
Microspheres
Glycoproteins
(4)
Microspheres
Laminin
(4)
Microspheres
Poly(chonroitin-4-sulfate)
(4)
Microspheres
Poly(ethylene glycol)
(4)
Microspheres
Poly(glycolide)
(4)
Microspheres
Poly(heparan sulfate)
(4)
Microspheres
Poly(hexamethylene oxamate)
(4)
Microspheres
Poly(lactide)
(4)
Microspheres
Poly(morpholinedione)
(4)
Microspheres
Poly(phosphazene)
(4)
Microspheres
Poly(sebacic anhydride)
(4)
Microspheres
Soy protein
(4)
Photovoltaics
Poly(acetylene)
(21)
Photovoltaics
Poly(phenylene vinylene)
(47)
Pore-forming
Carboxymethyl cellulose
(5)
Pore-forming agent
Hydroxylpropyl cellulose
(5)
Pore-forming agent
Poly(
N
-vinyl-2-pyrrolidone)
(5)
Pore-forming agent
Poly(ethylene glycol)
(5)
Preceramic precursor
Poly(carbosilane)
(33, 34)
Preceramic precursor
Poly(silazane)
(33, 34)
Rubber sponge
Poly(dimethyl siloxane)
(37, 38)
Scaffold
Poly(urethane)
(55)
Scale inhibitors
Poly(metaphosphate)
(44, 45)
Shape memory
Poly(tetramethyleneoxide)
(52)
Shape memory
Poly(urethane) composite
(53,54)
Spacecraft
Acrylonitrile butadiene styrene
(3)
Spacecraft
Allyl diglycol carbonate
(3)
Spacecraft
Cellulose acetate
(3)
Spacecraft
Crystalline poly(vinylfluoride) with white pigment
(3)
Spacecraft
Epoxide or epoxy resin
(3)
Spacecraft
Poly-(
p
-phenylene terephthalamide)
(3)
Spacecraft
Poly(
p
-phenylene-2.6-benzobisoxazole)
(3)
Spacecraft
Poly(acrylonitrile)
(3)
Spacecraft
Poly(amide) 6 or nylon 6
(3)
Spacecraft
Poly(amide) 66 or nylon 66
(3)
Spacecraft
Poly(benzimidazole)
(3)
Spacecraft
Poly(butylene terephthalate)
(3)
Spacecraft
Poly(etherimide)
(3)
Spacecraft
Poly(ethylene oxide)
(3)
Spacecraft
Poly(ethylene)
(3)
Spacecraft
Poly(imide)
(3)
Spacecraft
Poly(imide) (BPDA)
(3)
Spacecraft
Poly(imide) (PMDA)
(3)
Spacecraft
Poly(imide) resin, high temperature
(3)
Spacecraft
Poly(methyl methacrylate)
(3)
Spacecraft
Poly(oxymethylene)
(3)
Spacecraft
Poly(phenylene isophthalate)
(3)
Spacecraft
Poly(propylene)
(3)
Spacecraft
Poly(styrene)
(3)
Spacecraft
Poly(sulfone)
(3)
Spacecraft
Poly(urethane)
(3)
Spacecraft
Poly(vinyl fluoride)
(3)
Spacecraft
Pyrolytic graphite
(3)
Spacecraft Coating
Poly(amic acid)
(23)
Spacecraft, Adhesive
Epoxy Araldite A
(8)
Spacecraft, Bearings
Teflon-glass-MoS
2
(8)
Spacecraft, Circuit board
Epoxy-glass laminate
(8)
Spacecraft, Conducting Paint
Poly(urethane) H 32
(8)
Spacecraft, Heat-shrink sleeving
Polyolefin
(8)
Spacecraft, Insulating parts
Poly(acetal)
(8)
Spacecraft, Paint
Poly(urethane) Z 306
(8)
Spacecraft, Potting
Epoxy. Araldite F
(8)
Spacecraft, Seals
Silicone elastomer
(8)
Spacecraft, Seals
Viton A
(8)
Spacecraft, Solid lubricant
Poly(imide)
(8)
Spacecraft, Thermal insulation
Kapton H film
(8)
Spacecraft, Thermal insulation
PETP Mylar film
(8)
Spacecraft, Thermal insulation
Teflon film
(8)
Spacecraft, Wire sleeving
Teflon
(8)
Stents
Carboxymethyl cellulose
(6)
Stents
Cellophane
(6)
Stents
Cellulose
(6)
Stents
Cellulose acetate
(6)
Stents
Cellulose acetate butyrate
(6)
Stents
Cellulose butyrate
(6)
Stents
Cellulose nitrate
(6)
Stents
Cellulose propionate
(6)
Stents
Chitosan
(6)
Stents
Collagen
(6)
Stents
Fibrinogen
(6)
Stents
Hyaluronic acid
(6)
Stents
Nylon 66 Poly(caprolactam)
(6)
Stents
Poly(
D
,
L
-lactic acid)
(12)
Stents
Poly(
L
-lactic acid)
(12)
Stents
Poly(
L
-lactic acid)
(6)
Stents
Poly(
N
-acetylglucosamine)
(6)
Stents
Poly(4-hydroxy-L-proline ester)
(12)
Stents
Poly(caprolactone)
(6)
Stents
Poly(ethylene acrylate)
(6)
Stents
Poly(ethylene amide)
(6)
Stents
Poly(glycolic acid)
(6)
Stents
Poly(hydroxybutyrate)
(12)
Stents
Poly(hydroxybutyrate)
(6)
Stents
Poly(hydroxyvalerate)
(12)
Stents
Poly(hydroxyvalerate)
(6)
Stents
Poly(styrene)
(6)
Stents
Poly(trimethylene carbonate)
(6)
Stents
Poly(vinyl acetate)
(6)
Stents
Poly(vinyl methyl ether)
(6)
Stents
Poly(vinylidene chloride)
(6)
Stents
Rayon
(6)
Stents
Rayon triacetate
(6)
Stents
Starch
(6)
Surfactant
Poly(carboxylate)
(35)
Thickeners
Poly(saccharide)
Tissue marker
Collagen
Tissue marker
Gelatin
Tissue marker
Poly(caprolactone)
Tissue marker
Poly(dioxanone)
Tissue marker
Poly(glycolide)s
Tissue marker
Poly(lactide)s
Triboelectricity
Poly(
L
-lysine)
(14)
Wetting agent
Siloxane poly(ether)
(46)
Wound dressing
Poly(
N
-vinyl pyrrolidone)
(15)
1. P.E. Cassidy, An overview of polymers for harsh environments; aerospace, geothermal and undersea in L.-H. Lee, (Ed.), Adhesives, Sealants, and Coatings for Space and Harsh Environments, pp. 187–200. Springer US, Boston, MA, 1988.
2. N. Rajesh, N. Uma., and R. Valluru, Natural polymers - a boon for drug delivery in V. Mittal, (Ed.), Renewable Polymers: Synthesis, Processing, and Technology, chapter 10, pp. 429–472. Wiley-Scrivener, Beverly, USA, October 2011.
3. B.A. Banks, J.A. Backus, M.V. Manno, D.L. Waters, K.C. Cameron, and K.K. de Groh, Atomic oxygen erosion yield prediction for spacecraft polymers in low Earth orbit, in Proceedings of the International Symposium on Materials in a Space Environment (ISMSE-11), 2009.
4. D. Radulescu, Method for forming polymer microspheres, US Patent 6 998 074, assigned to MicroFab Technologies, Inc. (Plano, TX), February 14, 2006.
5. R.L. Dunn, A.J. Tipton, G.L. Southard, and J.A. Rogers, Biodegradable polymer composition, US Patent 5 599 552, assigned to Atrix Laboratories, Inc. (Fort Collins, CO), February 4, 1997.
6. W.J. Fox, N. Harold, A. Garcia, and A. Tochterman, Bioabsorbable stent with prohealing layer, US Patent 8 535 372, assigned to Abbott Cardiovascular Systems Inc. (Santa Clara, CA), September 17, 2013.
7. M. Ulbricht, Advanced functional polymer membranes, Polymer, Vol. 47, p. 2217, 2006. Single Chain Polymers.
8. T.J. Patrick, Space environment and vacuum properties of spacecraft materials, Vacuum, Vol. 31, p. 351, 1981.
9. T.L. Maggio, M.C. Turnage, M.R. Clark, K. Fujisawa, and M. Nakamura, Silicone (meth)acrylamide monomer, polymer, ophthalmic lens, and contact lens, US Patent 8 415 405, assigned to Johnson and Johnson Vision Care Inc., April 09, 2013.
10. J. Lichter, B. Vollrath, A.M. Trammel, S.G. Duron, F. Piu, L.A. Dellamary, Q. Ye, C. Lebel, M.C. Scaife, and J.P. Harris, Controlled release corticosteroid compositions and methods for the treatment of otic disorders, US Patent 8 680 083, assigned to Otonomy, Inc. (San Diego, CA) The Regents of the University of California (Oakland, CA), March 25, 2014.
11. L.J. Zeman and A. Zydney, Microfiltration and Ultrafiltration: Principles and Applications, CRC Press, 2017.
12. S.F.A. Hossainy and D. Dutta, Biodegradable polymers for use with implantable medical devices, US Patent 7 875 283, assigned to Advanced Cardiovascular Systems, Inc. (Santa Clara, CA), January 25, 2011.
13. J.A. Lewis, Q. Li, and R. Rao, Biphasic inks, US Patent 8 187 500, assigned to The Board of Trustees of the University of Illinois (Urbana, IL), May 29, 2012.
14. S.-H. Shin, Y.H. Kwon, Y.-H. Kim, J.-Y. Jung, M.H. Lee, and J. Nah, Triboelectric charging sequence induced by surface functionalization as a method to fabricate high performance triboelectric generators, ACS Nano, Vol. 9, p. 4621, 2015.
15. B.G. Belenkaya, V.I. Sakharova, and V.N. Polevov, Biodegradable absorbents and methods of preparation, US Patent 7 309 498, December 18, 2007.
16. S. Mogurampelly and V. Ganesan, Ion transport in polymerized ionic liquid—ionic liquid blends, Macromolecules, Vol. 51, p. 9471, 2018.
17. Y. Goto and M. Nakada, Decentered type contact lens and decentered type contact lens set, US Patent 10 444 542, assigned to Menicon Co. Ltd., October 15, 2019.
18. M.S. Rad, B. Khameneh, Z. Sabeti, S.A. Mohajeri, and B.S.F. Bazzaz, Antibacterial activity of silver nanoparticle-loaded soft contact lens materials: The effect of monomer composition, Current Eye Research, Vol. 41, p. 1286, 2016.
19. C.-J. Ko, Y.-K. Lin, F.-C. Chen, and C.-W. Chu, Modified buffer layers for polymer photovoltaic devices, Applied Physics Letters, Vol. 90, p. 063509, 2007.
20. M. Reyes-Reyes, K. Kim, and D.L. Carroll, High-efficiency photovoltaic devices based on annealed poly(3-hexylthiophene) and 1-(3-methoxycarbonyl)-propyl-1-phenyl-(6,6)C61 blends, Applied Physics Letters, Vol. 87, p. 083506, 2005.
21. J. Kanicki and P. Fedorko, Electrical and photovoltaic properties of trans-polyacetylene, Journal of Physics D: Applied Physics, Vol. 17, p. 805, 1984.
22. S. Hachiya, K.-I. Shinoda, and Y. Higo, Lubricant for use in hot rolling of stainless steel, US Patent 5 468 402, assigned to Nippon Steel Nisshin Co. Ltd., November 21, 1995.
23. G. Poe and B. Farmer, Polymeric coating for the protection of objects, US Patent 8 309 627, assigned to NeXolve Corp., November 13, 2012.
24. J. Wang, J. Chen, K. Konstantinov, L. Zhao, S. Ng, G. Wang, Z. Guo, and H. Liu, Sulphur-polypyrrole composite positive electrode materials for rechargeable lithium batteries, Electrochimica Acta, Vol. 51, p. 4634, 2006.
25. M. Sun, S. Zhang, T. Jiang, L. Zhang, and J. Yu, Nano-wire networks of sulfur-polypyrrole composite cathode materials for rechargeable lithium batteries, Electrochemistry Communications, Vol. 10, p. 1819, 2008.
26. X. Liang, Y. Liu, Z. Wen, L. Huang, X. Wang, and H. Zhang, A nano-structured and highly ordered polypyrrole-sulfur cathode for lithium-sulfur batteries, Journal of Power Sources, Vol. 196, p. 6951, 2011. 15th International Meeting on Lithium Batteries (IMLB).
27. X. Liang, Z. Wen, Y. Liu, H. Zhang, J. Jin, M. Wu, and X. Wu, A composite of sulfur and polypyrrole–multi walled carbon combinatorial nanotube as cathode for Li/S battery, Journal of Power Sources, Vol. 206, p. 409, 2012.
28. Y. Fu, Y.-S. Su, and A. Manthiram, Sulfur-polypyrrole composite cathodes for lithium-sulfur batteries, Journal of the Electrochemical Society, Vol. 159, p. A1420, 2012.
29. C.R. Dandekar, K. Mahalatkar, M.K. Verma, S. Sarkar, K.G. Phaneuf, and J.A. Mapkar, Electrically conductive polymers as sensing media to detect leaks in aerospace pneumatic ducts, US Patent 9 989 435, assigned to Eaton Intelligent Power Ltd., June 05, 2018.
30. L.M. Evans, M.L. Flora, M.-P.S. Santo, and T.J. Trombly, Integrated garment system, US Patent 9 015 864, assigned to Massif Mountain Gear Company LLC, April 28, 2015.
31. S.H. Je, T.H. Hwang, S.N. Talapaneni, O. Buyukcakir, H.J. Kim, J.-S. Yu, S.-G. Woo, M.C. Jang, B.K. Son, A. Coskun, and J.W. Choi, Rational sulfur cathode design for lithium–sulfur batteries: Sulfur-embedded benzoxazine polymers, ACS Energy Letters, Vol. 1, p. 566, 2016.
32. J.C. Yoo, Y.L. Kang, and M.Y. Kong, Transparent hydrogel membrane including hyaluronic acid, and contact lens including same, US Patent Application 20 200 262 985, assigned to JCBio Co. Ltd., August 20, 2020.
33. E. Ionescu, H.-J. Kleebe, and R. Riedel, Silicon-containing polymer-derived ceramic nanocomposites (PDC-NCs): preparative approaches and properties, Chemical Society Reviews, Vol. 41, p. 5032, 2012.
34. G. Mera, M. Gallei, S. Bernard, and E. Ionescu, Ceramic nanocomposites from tailor-made preceramic polymers, Nanomaterials, Vol. 5, p. 468, 2015.
35. N.S. Berke, J.S. Merritt, L. Li, J. Antonio J. Aldykiewicz, R.A. Wiercinski, and M.D. Morgan, Articles made from cementitious foam and slurry, US Patent 8 277 556, assigned to WR Grace and Co. Conn., October 02, 2012.
36. D.A. Beckley and J. Stites, Processable silicone composite materials having high temperature resistance, US Patent 5 612 399, assigned to HITCO Carbon Composites Inc., March 18, 1997.
37. M. Irie, Sponge-formable silicone rubber composition and silicone rubber sponge, US Patent Application 20 180 037 709, assigned to Dow Corning Toray Co. Ltd., February 8, 2018.
38. M. Irie, Sponge-formable silicone rubber composition and silicone rubber sponge, US Patent Application 20 180 057 652, assigned to Dow Corning Toray Co. Ltd., March 1, 2018.
39. G.C. Li, H.K. Jing, Z. Su, C. Lai, L. Chen, C.C. Yuan, H.H. Li, and L. Liu, A hydrophilic separator for high performance lithium sulfur batteries, Journal of Materials Chemistry A, Vol. 3, p. 11014, 2015.
40. D. Myung, J. Noolandl, C. Ta, and C.W. Frank, Interpenetrating polymer network hydrogel contact lenses, US Patent 7 857 447, assigned to The Board of Trustees of the Leland Stanford Junior University (Palo Alto, CA), December 28, 2010.
41. D.R. Elmaleh, S.C. Robson, and M.L. Papisov, Conjugates comprising a biodegradable polymer and uses therefor, US Patent 7 785 618, August 31, 2010.
42. T. Xu, J.J. Yoo, A. Atala, and D. Dice, Inkjet printing of tissues and cells, US Patent 8 691 274, assigned to Wake Forest University Health Sciences (Winston-Salem, NC), April 8, 2014.
43. E.C. Opara, Microencapsulated pancreatic islet cells, US Patent 6 783 964, assigned to Duke University (Durham, NC), August 31, 2004.
44. Y. Duccini, A. Dufour, W.M. Harm, T.W. Sanders, and B. Weinstein, High performance oilfield scale inhibitors, in Corrosion97, New Orleans, LA, March 1997. NACE International.
45. A.A. Umar and I.B.M. Saaid, Silicate scales formation during ASP flooding: A review, Research Journal of Applied Sciences, Engineering and Technology, Vol. 6, p. 1543, 2013.
46. M. Barth, W. Blackwood, V. Clerici, and A.W. Mountney, Coated fabric products, US Patent 10 023 994, assigned to Dow Silicones Corp., July 17, 2018.
47. S. Chambon, A. Rivaton, J.-L. Gardette, M. Firon, and L. Lutsen, Aging of a donor conjugated polymer: Photochemical studies of the degradation of poly[2-methoxy-5-(3’,7’-dimethyloctyloxy)-1,4-phenylenevinylene], Journal of Polymer Science Part A: Polymer Chemistry, Vol. 45, p. 317, 2007.
48. S. Wan, A.K. Tieu, Y. Xia, H. Zhu, B.H. Tran, and S. Cui, An overview of inorganic polymer as potential lubricant additive for high temperature tribology, Tribology International, Vol. 102, p. 620, 2016.
49. N. Canter, Special report: Trends in extreme pressure additives, Tribology and Lubrication Technology, Vol. 63, p. 10, 2007.
50. J. Zhu, P. Zhu, C. Yan, X. Dong, and X. Zhang, Recent progress in polymer materials for advanced lithium-sulfur batteries, Progress in Polymer Science, Vol. 90, p. 118, 2019.
51. B.E. Stevens, B.D. Booth, and A.M. Zweig, Chemically foamed polysulfide sealant for aerospace fuel tank use, US Patent 10 160 893, assigned to Boeing Co., December 25, 2018.
52. R. Biju, C. Gouri, and C.P. Reghunadhan Nair, Shape memory polymers based on cyanate ester-epoxy-poly (tetramethyleneoxide) co-reacted system, European Polymer Journal, Vol. 48, p. 499, 2012.
53. J.W. Cho, J.W. Kim, Y.C. Jung, and N.S. Goo, Electroactive shape-memory polyurethane composites incorporating carbon nanotubes, Macromolecular Rapid Communications, Vol. 26, p. 412, 2005.
54. I.H. Paik, N.S. Goo, Y.C. Jung, and J.W. Cho, Development and application of conducting shape memory polyurethane actuators, Smart Materials and Structures, Vol. 15, p. 1476, September 2006.
55. C. Zhang, X. Wen, N.R. Vyavahare, and T. Boland, Synthesis and characterization of biodegradable elastomeric polyurethane scaffolds fabricated by the inkjet technique, Biomaterials, Vol. 29, p. 3781, October 2008.
56. R.-Y. Ma and D.-S. Xiong, Synthesis and properties of physically crosslinked poly(vinyl alcohol) hydrogels, Journal of China University of Mining and Technology, Vol. 18, p. 271, June 2008.
57. Y. Bar-Cohen and Q. Zhang, Electroactive polymer actuators and sensors, MRS Bulletin, Vol. 33, p. 173, 2008.
58. J. Biggs, K. Danielmeier, J. Hitzbleck, J. Krause, T. Kridl, S. Nowak, E. Orselli, X. Quan, D. Schapeler, W. Sutherland, and J. Wagner, Electroactive polymers: Developments of and perspectives for dielectric elastomers, Angewandte Chemie International Edition, Vol. 52, p. 9409, 2013.
59. T. Rajan and J.M. Gladis, Smart electroactive polymers and composite materials in R. Francis and D.S. Kumar, (Eds.), Biomedical Applications of Polymeric Materials and Composites, chapter 5, pp. 125–140. Wiley-VCH, Weinheim, 2016.
60. T. Wang, M. Farajollahi, Y.S. Choi, I.-T. Lin, J.E. Marshall, N.M. Thompson, S. Kar-Narayan, J.D.W. Madden, and S.K. Smoukov, Electroactive polymers for sensing, Interface Focus, Vol. 6, p. 20160026, 2016.
61. M. Radosz and Y. Shen, Poly(ionic liquid)s as new materials for CO2 separation and other applications, US Patent 8 449 652, assigned to University of Wyoming, May 28, 2013.
62. F. Robinson, Polymers useful as pH responsive thickeners and monomers therefor, US Patent 5 874 495, assigned to Rhodia Inc., February 23, 1999.
63. M. Kaushik, D. Zierer, K.L. Price, and J.L. Coleman, Polymer composition and articles for use in low temperature environments that are wear resistant, WO Patent 2 013 169 351, assigned to Ticona LLC, November 14, 2013.
64. M.J. Derry, T. Smith, P.S. O’Hora, and S.P. Armes, Block copolymer nanoparticles prepared via polymerization-induced self-assembly provide excellent boundary lubrication performance for next-generation ultralow-viscosity automotive engine oils, ACS Applied Materials & Interfaces, Vol. 11, p. 33364, 2019.
65. M. Jalaal and B. Stoeber, Controlled spreading of thermo-responsive droplets, Soft Matter, Vol. 10, p. 808, 2014.
66. K. Luetzow, T. Weigel, and A. Lendlein, Solvent-based fabrication method for magnetic, shape-memory nanocomposite foams, MRS Advances, Vol. 5, p. 785, 2020.
Synthetic membranes have been described, and also the use of these synthetic membranes for the isolation of volatile organic compounds and purification of water (1).
A new class of synthetic brush hydrophobic polymer membranes was developed. Such a synthetic membrane includes a hydrophobic polymer layer located on a polymeric membrane support layer, wherein the hydrophobic polymer layer includes a plurality of polymer units covalently bonded to the polymeric membrane support layer. Here each polymer unit consists of a polymerized plurality of vinyl monomers.
The synthetic membrane can be used in both pervaporation methods and reverse osmosis.
Pervaporation is a combination of a membrane (rate governed) and thermal (equilibrium) process and is most widely used alone or in combination with distillation. The advantage of using this process is that it easily breaks azeotropes and fractionates close to boiling liquids, in contrast to thermal processes (2).
An important example is the dehydration of ethanol and isopropanol water mixtures in the pharmaceutical and fine chemical industries. The first step is to distill water from ethanol until the azeotrope is formed (at 10% water) and then, in the second step, using pervaporation to yield a final water content of <1%. This purity of ethanol allows it to be used as a fuel. An aqueous stream containing alcohol is passed across a pervaporation membrane allowing the alcohol to dissolve into the membrane and then diffuse down a chemical potential gradient to the second face of the membrane where the alcohol evaporates into a carrier gas or is allowed to recondense at a cooled surface, while the retained polar component (water in this case) concentrates on the feed side. The difference in chemical potential between the two phases is the driving force for permeation. Passing water through the membrane in preference to alcohol necessitates a hydrophilic membrane while the reverse requires a hydrophobic membrane. Thus, the choice of material is critical for selectivity of pervaporation membranes, since the mechanism of transport is based on the solution-diffusion model (3).
Here, rubbery poly(dimethyl siloxane), also called silicone rubber or Sil5 and Sil20, is used commercially to selectively pass ethanol in preference to water, and relies on sorption selectivity rather than diffusion selectivity (4), while the opposite holds for poly(vinyl alcohol), which is hydrophilic and is both sorption and diffusion selective for water passage (5).
These materials plus cellulose acetate have been used in asymmetric or composite structures for the past 30 years (1).
A synthetic membrane contains a hydrophobic polymer layer located on a polymeric membrane support layer, wherein the hydrophobic polymer layer contains a plurality of polymer units covalently bonded to the polymeric membrane support layer, wherein each polymer unit is composed of a polymerized plurality of vinyl monomers the method consists of (1):
Contacting a volatile organic mixture with the hydrophobic polymer layer of the synthetic membrane, the volatile organic mixture composed of water and volatile organic compounds, and
Removing volatile organic compounds from the polymeric membrane support layer of the synthetic membrane by a process of pervaporation.
Also, methods of isolating non-polar gases by gas fractionation can be performed (1).
A perspective view that shows an apparatus for anaerobic wastewater treatment with a membrane is shown in Figure 2.1.
Figure 2.1 Apparatus for anaerobic wastewater treatment (6).
110:
Anaerobic reactor
120:
First media
130:
Baffle
140:
First biogas tank
150:
Water level sensor
210:
Anaerobic bioreactor
220:
Submerged membrane
230:
Rotating disk
240:
Second media
250:
Baffle
260:
Second biogas tank
271:
Motor
272:
Shaft
280:
Water level sensor