Patent EP0182548A2 successfully refreshed from Google Patents.
EP0182548A2
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EP
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Novel conductive polymers
Assignee: BP PLC
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Filing: 1985-11-07
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Granted: —
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Expires: 2005-11-07
Abstract
Abstract This invention relates to novel conductive thienylene- and furanylene-vinyle polymers and to a process for their preparation. The polymer can be formed into coherent films in which no voids are visible up to magnifications of up to 5000 times. These polymers have band gaps below 2 eV which makes them more suitable than conventional polyphenylene and poly(phenylene vinylene) polymers for use e.g. in batteries.
Inventors
- 👤 Kevin Harper
- 👤 William John West Watson
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-26 16:49
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; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/60; C08G2261/00; C08G2261/30; C08G2261/34; C08G2261/344; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
53 words
A polymer of the formula (I): Wherein X is a sulphur or an oxygen atom; R 1 and R 4 are the same or different substituents selected from H, a C 1- C 4 alkyl, a carbonitrile, a halide, a trihalomethyl and a phenyl group, and n has a value greater than 10.
Claim 2
Dependent Claim
53 words
A polymer of the formula (I): Wherein X is a sulphur or an oxygen atom; R 1 and R 4 are the same or different substituents selected from H, a C 1- C 4 alkyl, a carbonitrile, a halide, a trihalomethyl and a phenyl group, and n has a value greater than 10.
Claim 3
Dependent Claim
15 words
A polymer according to claim 1 wherein said polymer is poly(2,5-thienylene vinylene) or poly(2,5-furanylene vinylene).
Claim 4
Dependent Claim
32 words
A polymer of formula (I) according to claim 1 or 2 wherein said polymer is in the form of a coherent film which shows no visible voids at magnifications upto 5000 times.
Claim 5
Dependent Claim
117 words
A process for preparing polymers of formula (I) said process comprising (a) contacting a 2,5-bis-methylene halide substituted thiophene or furan with a sulphide of the formula R 2 R 3 S, wherein R 2 and R 3 are independently H or an alkyl group or together with the sulphur atom form a heterocyclic ring, to form a bis-sulphonium salt, (b) polymerising the bisulphonium salt in the liquid phase in the presence of a base to form a precursor polymer in solution, (c) separating a solution of the precursor polymer from the reaction mixture and recovering the precursor polymer from said solution, and (d) thermally decomposing the recovered precursor polymer to form the final polymer of formula (I).
Claim 6
Dependent Claim
117 words
A process for preparing polymers of formula (I) said process comprising (a) contacting a 2,5-bis-methylene halide substituted thiophene or furan with a sulphide of the formula R 2 R 3 S, wherein R 2 and R 3 are independently H or an alkyl group or together with the sulphur atom form a heterocyclic ring, to form a bis-sulphonium salt, (b) polymerising the bisulphonium salt in the liquid phase in the presence of a base to form a precursor polymer in solution, (c) separating a solution of the precursor polymer from the reaction mixture and recovering the precursor polymer from said solution, and (d) thermally decomposing the recovered precursor polymer to form the final polymer of formula (I).
Claim 7
Dependent Claim
45 words
A process according to claim 4 said process comprising polymerising the bis-sulphonium salt of the bis-methylene halide substituted thiophene or furan in the presence of an organic nitrogen containing base capable of forming a quaternary ammonium halide which is insoluble in the liquid reaction phase.
Claim 8
Dependent Claim
17 words
A process according to claim 5 wherein the organic nitrogen base is selected from 1,5,7-triazabicyclo[4.4.0]dec-5-ene and 1,8-diazabicyclo[5.4.0]undec-7-ene.
Claim 9
Dependent Claim
19 words
A process according to claims 5 or 6 wherein the organic nitrogen base is supported on a polymeric backbone.
Claim 10
Dependent Claim
31 words
A process according to any one of the preceding claims 4r7 wherein the polymerisation to form the precursor .polymer is carried out in an aqueous, alcoholic or an aqueous alcoholic phase.
Claim 11
Dependent Claim
42 words
A process according to any one of the preceding claims 4-8 wherein the precursor polymer is recovered from the reaction mixture by separating a solution thereof from the reaction products and by casting the precursor polymer in solution into a desired shape.
Claim 12
Dependent Claim
45 words
A process according to any one of the preceding claims 4-9 wherein the recovered precursor polymer is transformed into the final polymer of formula (I) by thermal decomposition at 0 to 300°C either in a vacuum or in an atmosphere inert under the reaction conditions.
References Cited (Backward Citations)
No citation records indexed.
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