US4615829A
Expired / Lapsed
US
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Electroconductive organic polymer and method for producing the same
Assignee: Nitto Denko Corp
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Filing: 1984-11-13
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Granted: 1986-10-07
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Expires: 2004-11-13
Abstract
Abstract An electroconductive organic polymer exhibiting outstanding electroconductivity is described, containing an electron acceptor as a dopant, and having electroconductivity of not less than 10 -6 S/cm, substantially comprising a linear polymer having as a main repeating unit thereof a quinonediimine structure represented by formula (III) ##STR1## wherein R represents a hydrogen atom or an alkyl group. This polymer can be obtained by oxidative polymerization of an aniline compound or a water-soluble salt thereof with an oxidizing agent in a reaction medium containing a protonic acid.
Inventors
- 👤 Shohei Tamura
- 👤 Sadamitsu Sasaki
- 👤 Masao Abe
- 👤 Hitoshi Nakazawa
- 👤 Hisashi Ichinose
- 👤 Keiji Nakamoto
- 👤 Satoshi Yumoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:37
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/60; C; C08; C08G; C08G73/00; C08G73/02; C08G73/026; C08G73/0266; C08L; C08L79/00; H01B; H01B1/00; H01B1/06; H01B1/12; H01B1/124; H01B1/128; H10; H10K; H10K85/00; H10K85/10; H10K85/111; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
85 words
An electroconductive organic polymer containing an electron acceptor as a dopant, and having electroconductivity of not less than 10 -6 S/cm, consisting essentially of a linear polymer having as a main repeating unit thereof a quinonediimine structure represented by formula (III) ##STR6## wherein R represents a hydrogen atom, a methyl group, or an ethyl group wherein the polymer has a logarithmic viscosity number of at least 0.10 as determined in 97% sulfuric acid at a concentration of 0.5 g/dl of said polymer at 30° C.
Claim 2
Dependent Claim
85 words
An electroconductive organic polymer containing an electron acceptor as a dopant, and having electroconductivity of not less than 10 -6 S/cm, consisting essentially of a linear polymer having as a main repeating unit thereof a quinonediimine structure represented by formula (III) ##STR6## wherein R represents a hydrogen atom, a methyl group, or an ethyl group wherein the polymer has a logarithmic viscosity number of at least 0.10 as determined in 97% sulfuric acid at a concentration of 0.5 g/dl of said polymer at 30° C.
Claim 3
Dependent Claim
68 words
A method for producing an electroconductive organic polymer as defined in claim 1, which comprises oxidative polymerization of aniline, methylaniline or ethylaniline or a water-soluble salt thereof with an oxidizing agent in a reaction medium containing a protonic acid wherein said oxidizing agent is potassium dichromate, and wherein the molar ratio of protonic acid/potassium dichromate in said reaction medium containing said oxidizing agent is not less than 1.2/1.
Claim 4
Dependent Claim
13 words
A method according to claim 2, wherein said protonic acid is sulfuric acid.
Claim 5
Dependent Claim
20 words
The method according to claim 2, wherein said methylaniline is o-methylaniline or m-methylaniline, and said ethylaniline is o-ethylaniline or m-ethylaniline.
Claim 6
Dependent Claim
16 words
A method according to claim 3, wherein the molar ratio is not more than about 50/1.
Claim 7
Dependent Claim
29 words
An electroconductive organic polymer according to claim 1, wherein the 97% sulfuric acid 0.5 g/dl solution of the polymer possesses a logarithmic viscosity number of from 0.1 to 1.0.
Claim 8
Dependent Claim
29 words
An electroconductive organic polymer according to claim 1, wherein the 97% sulfuric acid 0.5 g/dl solution of the polymer possesses a logarithmic viscosity number of from 0.2 to 0.6.
Claim 9
Dependent Claim
19 words
An electroconductive organic polymer according to claim 1, wherein said polymer has an electroconductivity higher than 10 -3 S/cm.
References Cited (Backward Citations)
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