US5147913A
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Cross-linked polymers derived from polyaniline and gels comprising the same
Assignee: University of Pennsylvania
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Filing: 1991-02-08
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Granted: 1992-09-15
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Expires: 2011-02-08
Abstract
Abstract Cross-linked polymer networks derived from polyaniline and polyaniline derivatives are provided, as well as preparative methods therefor. Also provided are gels comprising cross-linked polymer and a liquid. The cross-linked polymers preferably are prepared by providing a substantially linear polymer which comprises polyaniline and/or a polyaniline derivative, admixing the linear polymer with a liquid in which the cross-linked polymer is substantially insoluble, and cross-linking the polymer through agitation. The cross-linked polymers of the invention can be employed to fabricate shaped articles which reversibly expand and contract in either an isotropic or anisotropic fashion and may find use in gas and/or liquid separations.
Inventors
- 👤 Alan G. MacDiarmid
- 👤 Xun Tang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:52
CPC Classifications
C; C08; C08G; C08G73/00; C08G73/02; C08G73/026; C08G73/0266
Claims Analysis
Total Claims: 40
Claim 1
Independent Claim
20 words
A gel which comprises a network of cross-linked polymer and a liquid, said network comprising at least one polyaniline derivative.
Claim 2
Dependent Claim
20 words
A gel which comprises a network of cross-linked polymer and a liquid, said network comprising at least one polyaniline derivative.
Claim 3
Dependent Claim
12 words
The gel of claim 1 wherein the liquid swells the cross-linked polymer.
Claim 4
Dependent Claim
12 words
The gel of claim 1 wherein the liquid shrinks the cross-linked polymer.
Claim 5
Dependent Claim
12 words
The gel of claim 1 wherein the liquid hydrogen-bonds with the polymer.
Claim 6
Dependent Claim
10 words
The gel of claim 1 wherein the liquid comprises 1-methyl-2-pyrrolidinone.
Claim 7
Dependent Claim
119 words
The gel of claim 1 wherein the polyaniline derivative has the structure: ##STR4## wherein Y=0-1 and R 1 , R 2 , R 3 , and R 4 are independently hydrogen, alkyl having from about 1 to about 6 carbon atoms, alkoxyl having from about 1 to about 6 carbon atoms, SO 3 H, R r --SO 2 or R r --CO 2 , and R 5 and R 6 are independently hydrogen, alkyl having from about 1 to about 6 carbon atoms, alkoxyl having from about 1 to about 6 carbon atoms, R r --SO 2 or R r --CO 2 , wherein R r is aryl or alkyl having from about 1 to about 6 carbon atoms.
Claim 8
Dependent Claim
26 words
The gel of claim 6 wherein R 1 , R 2 , R 3 , R 4 , R 5 , and R 6 are hydrogen.
Claim 9
Dependent Claim
30 words
The gel of claim 6 wherein R 1 is methoxy or ethoxy and R 2 , R 3 , R 4 , R 5 , and R 6 are hydrogen.
Claim 10
Dependent Claim
14 words
The gel of claim 1 wherein at least one polyaniline derivative comprises emeraldine base.
Claim 11
Dependent Claim
131 words
The gel of claim 1 wherein the polyaniline derivative has the structure: ##STR5## wherein A is an anionic species, Y=0-1, and R 1 , R 2 , R 3 , and R 4 are independently hydrogen, alkyl having from about 1 to about 6 carbon atoms, alkoxyl having from about 1 to about 6 carbon atoms, SO 3 H, R r --SO 2 or R r --CO 2 , and R 5 , R 6 , R 7 , and R 8 are independently hydrogen, alkyl having from about 1 to about 6 carbon atoms, alkoxyl having from about 1 to about 6 carbon atoms, R r --SO 2 or R r --CO 2 , wherein R r is aryl or alkyl having from about 1 to about 6 carbon atoms.
Claim 12
Dependent Claim
32 words
The gel of claim 10 wherein R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , and R 8 are hydrogen.
Claim 13
Dependent Claim
36 words
The gel of claim 10 wherein R 1 is methoxy or ethoxy and R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , and R 8 are hydrogen.
Claim 14
Dependent Claim
14 words
The gel of claim 1 wherein at least one polyaniline derivative comprises emeraldine salt.
Claim 15
Dependent Claim
14 words
The gel of claim 1 wherein the polymer is cross-linked partially through covalent bonds.
Claim 16
Dependent Claim
14 words
The gel of claim 1 wherein the polymer is cross-linked substantially through physical interactions.
Claim 17
Dependent Claim
13 words
The gel of claim 1 wherein the polymer is cross-linked substantially through crystallization.
Claim 18
Dependent Claim
17 words
The gel of claim 1 which comprises from about 5 to about 90 weight percent polyaniline derivative.
Claim 19
Dependent Claim
12 words
A shaped article which comprises at least one gel of claim 1.
Claim 20
Independent Claim
32 words
A method for preparing network of cross-linked polymer, comprising the steps of: providing a polymer which comprises at least one polyaniline derivative; admixing the polymer with a liquid; and cross-linking the polymer.
Claim 21
Independent Claim
32 words
A method for preparing network of cross-linked polymer, comprising the steps of: providing a polymer which comprises at least one polyaniline derivative; admixing the polymer with a liquid; and cross-linking the polymer.
Claim 22
Dependent Claim
119 words
The method of claim 19 wherein the polyaniline derivative has the structure: ##STR6## wherein Y=0-1 and R 1 , R 2 , R 3 , and R 4 are independently hydrogen, alkyl having from about 1 to about 6 carbon atoms, alkoxyl having from about 1 to about 6 carbon atoms, SO 3 H, R r --SO 2 or R r --CO 2 , and R 5 and R 6 are independently hydrogen, alkyl having from about 1 to about 6 carbon atoms, alkoxyl having from about 1 to about 6 carbon atoms, R r --SO 2 or R r --CO 2 , wherein R r is aryl or alkyl having from about 1 to about 6 carbon atoms.
Claim 23
Dependent Claim
12 words
The method of claim 19 wherein the polyaniline derivative comprises emeraldine base.
Claim 24
Dependent Claim
131 words
The method of claim 19 wherein the polyaniline derivative has the structure: ##STR7## wherein Y=0-1, A is an anionic species, and R 1 , R 2 , R 3 , and R 4 are independently hydrogen, alkyl having from about 1 to about 6 carbon atoms, alkoxyl having from about 1 to about 6 carbon atoms, SO 3 H, R r --SO 2 or R r --CO 2 , and R 5 , R 6 , R 7 , and R 8 are independently hydrogen, alkyl having from about 1 to about 6 carbon atoms, alkoxyl having from about 1 to about 6 carbon atoms, R r --SO 2 or R r --CO 2 , wherein R r is aryl or alkyl having from about 1 to about 6 carbon atoms.
Claim 25
Dependent Claim
12 words
The method of claim 19 wherein the polyaniline derivative comprises emeraldine salt.
Claim 26
Dependent Claim
12 words
The method of claim 19 wherein the polyaniline derivative is substantially linear.
Claim 27
Dependent Claim
15 words
The method of claim 19 wherein the cross-linked polymer is substantially insoluble in the liquid.
Claim 28
Dependent Claim
12 words
The method of claim 19 wherein the liquid swells the cross-linked polymer.
Claim 29
Dependent Claim
13 words
The method of claim 19 wherein the liquid hydrogen-bonds with the cross-linked polymer.
Claim 30
Dependent Claim
10 words
The method of claim 19 wherein the liquid comprises 1-methyl-2-pyrrolidinone.
Claim 31
Dependent Claim
19 words
The method of claim 19 wherein the admixture comprises from about 5 to about 30 weight percent polyaniline derivative.
Claim 32
Dependent Claim
15 words
The method of claim 19 wherein the admixture comprises about 20 weight percent polyaniline derivative.
Claim 33
Dependent Claim
20 words
The method of claim 19 further comprising agitating the admixture for an amount of time effective to increase its viscosity.
Claim 34
Dependent Claim
15 words
The method of claim 19 further comprising placing the admixture in contact with a substrate.
Claim 35
Dependent Claim
11 words
The method of claim 19 further comprising stretching the cross-linked polymer.
Claim 36
Dependent Claim
13 words
The method of claim 19 further comprising rendering the cross-linked polymer electrically conductive.
Claim 37
Dependent Claim
25 words
The method of claim 19 further comprising contacting the cross-linked polymer with an amount of aqueous protonic acid effective render the cross-linked polymer electrically conductive.
Claim 38
Dependent Claim
10 words
The polyaniline cross-linked polymer produced in accordance with claim 19.
Claim 39
Dependent Claim
36 words
A composition of matter prepared by a method which comprises: providing a polymer which comprises at least one polyaniline derivative; admixing the polymer with a liquid; and providing reaction conditions effective to substantially solidify the admixture.
Claim 40
Dependent Claim
36 words
A composition of matter prepared by a method which comprises: providing a polymer which comprises at least one polyaniline derivative; admixing the polymer with a liquid; and providing reaction conditions effective to substantially solidify the admixture.
References Cited (Backward Citations)
No citation records indexed.
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