US4909959A
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Conductive polymers derived from 3-alkylthiophenes, a process for manufacturing them and electroconductive devices containing them
Assignee: Solvay SA
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Filing: 1987-04-01
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Granted: 1990-03-20
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Expires: 2007-04-01
Abstract
Abstract The subject of the invention is mainly an electrically conductive polymer containing repeated units derived from 3-alkythiophenes in which the alkyl substituent contains from six to nine carbon atoms. The invention also relates to a process for manufacturing these polymers and to electroconductive devices containing them.
Inventors
- 👤 Marc Lemaire
- 👤 Jean Roncali
- 👤 Robert Garreau
- 👤 Francis Garnier
- 👤 Etienne Hannecart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:55
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/06; H01B1/12; H01B1/124; H01B1/127; C; C08; C08G; C08G61/00; C08G61/12; C08G61/122; C08G61/123; C08G61/126; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/60; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
63 words
An electrically conductive insoluble polymer containing repeated units derived from 3-alkylthiophenes in which the alkyl substituent contains from six to nine carbon atoms and an effective amount of a dopant to produce reversible oxidized and reduced forms, having a stability such that said electrically conductive insoluble polymer can undergo more than 1.5×10 6 oxidation/reduction cycles while still retaining 80% of an initial charge.
Claim 2
Dependent Claim
63 words
An electrically conductive insoluble polymer containing repeated units derived from 3-alkylthiophenes in which the alkyl substituent contains from six to nine carbon atoms and an effective amount of a dopant to produce reversible oxidized and reduced forms, having a stability such that said electrically conductive insoluble polymer can undergo more than 1.5×10 6 oxidation/reduction cycles while still retaining 80% of an initial charge.
Claim 3
Dependent Claim
34 words
The conductive insoluble polymer polymers according to claim 1, characterized in that they consist essentially of repeated units derived from a 3-alkylthiophene in which the alkyl substituent contains from six to nine carbon atoms.
Claim 4
Dependent Claim
19 words
The conductive insoluble polymer polymers according to claim 1, characterized in that the repeated units are derived from 3-n-octylthiophene.
Claim 5
Dependent Claim
21 words
Electroconductive devices selected from the group consisting of display screens, switches, and memory elements containing a polymer according to claim 1.
Claim 6
Dependent Claim
25 words
Electrochemical devices for energy storage, in which the anodes consist of electrodes coated with films of insoluble polymers according to claim 1 doped with anions.
Claim 7
Dependent Claim
17 words
Electrochromic devices in which the anodes are coated with films of insoluble polymers according to claim 1
Claim 8
Dependent Claim
10 words
A display screen containing a polymer according to claim 1.
Claim 9
Dependent Claim
9 words
A switch containing a polymer according to claim 1.
Claim 10
Dependent Claim
10 words
A memory element containing a polymer according to claim 1.
Claim 11
Dependent Claim
59 words
The electrochemical device according to claim 5, wherein said polymer film is represented by the formula (M + A - y ) n wherein M + denotes the monomer, A - denotes the anion, y is the proportion of polymer expressed per unit of monomer having a value up to about 0.5, and n is the degree of polymerization.
Claim 12
Dependent Claim
63 words
In the electrochemical device according to claim 10, wherein said anion is selected from the group consisting of ClO 4 - , AsF 6 - , SbF 6 - , SO 4 2- , C 6 H 5 COO - , C 6 H 5 SO 3 - , BF 4 - , PF 6 - and CF 3 SO 3 - ions.
Claim 13
Dependent Claim
11 words
The conductive insoluble polymer according to claim 1, doped with anions.
Claim 14
Dependent Claim
56 words
The conductive insoluble polymer according to claim 12 represented by the empirical formula (M + A - y ) n wherein M + denotes the monomer, A - denotes the anion, y is the proportion of polymer expressed per unit of monomer having a value up to about 0.5, and n is the degree of polymerization.
Claim 15
Dependent Claim
63 words
The conductive insoluble polymer according to claim 13, wherein said anion is selected from the group consisting of ClO 4 - , AsF 6 - , SbF 6 - , SO 4 2- , C 6 H 5 COO - , C 6 H 5 SO 3 - , BF 4 - , PF 6 - and CF 3 SO 3 - ions.
Claim 16
Dependent Claim
20 words
In a rechargeable battery, the improvement comprising electrodes of an electrically conductive insoluble polymer as set forth in claim 1.
Claim 17
Dependent Claim
20 words
In an electrochemical cell, the improvement comprising electrodes of an electrically conductive insoluble polymer as set forth in claim 1.
Claim 18
Dependent Claim
20 words
In a photovoltaic cell, the improvement comprising electrodes of an electrically conductive insoluble polymer as set forth in claim 1.
Claim 19
Dependent Claim
23 words
The conductive insoluble polymer according to claim 1, having a ratio between an oxidation current and a reduction current intensity of about one.
Claim 20
Dependent Claim
26 words
The conductive insoluble polymer according to claim 1, having a switching time between said oxidized form and said reduced form of less than about 50 milliseconds.
References Cited (Backward Citations)
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