Conjugated polymer film and pyrolyzed product thereof
AssigneeDirector-General of Agency of Industrial Science and Technology
InventorsIchiki Murase, Toshihiro Ohnishi, Takanobu Noguchi
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Abstract
A high strength and modulus conjugated polymer film which comprises as its rincipal constitutive unit a conjugated polymer structure represented by the general formula: --R--CH.dbd.CH).sub.n wherein R is an aromatic hydrocarbon group having 6 to 20 carbon atoms which forms a consecutive carbon to carbon conjugated system with vinylene group, and n is an integer of 5 to 50,000, and has a tensile strength of 15 kg/mm.sup.2 or more and an elastic modulus of 350 kg/mm.sup.2 or more, and a highly electroconductive pyrolyzed product thereof.
Claims9
A highly electroconductive carbonaceous material obtained by a method which comprises:
- (a) biaxially stretching a film of polyelectrolyte of a sulfonium salt having a recurring unit:
- ##STR2## and a molecular weight greater than 3500, wherein R.sub.1 and R.sub.2 each represent a hydrocarbon radical having 1 to 20 carbon atoms, R is an aromatic hydrocarbon group having 6 to 20 carbon atoms, and X is an anion, at a temperature of 30.degree.-150.degree. C. in an inert atmosphere;
- (b) annealing the biaxially stretched film at a temperature of 150.degree.-450.degree. C. in an inert atmosphere, thereby forming a biaxially stretch-oriented film of a conjugated polymer of the formula:
- --R--CH.dbd.CH).sub.n
- wherein R, defined as above, forms a conjugated system with the vinylene group, and n is an integer of up to 50,000;
- and
- (c) pyrolyzing said annealed film at a temperature of 400.degree.-3500.degree. C. in an inert atmosphere.
A highly electroconductive carbonaceous material obtained by a method which comprises:
- (a) biaxially stretching a film of polyelectrolyte of a sulfonium salt having a recurring unit;
- ##STR3## and a molecular weight greater than 3,500, wherein R.sub.1 and R.sub.2 each represent a hydrocarbon radical having 1 to 20 carbon atoms, R is an aromatic hydrocarbon group having 6 to 20 carbon atoms, and X is an anion, at a temperature of 30.degree.-150.degree. C. in an inert atmosphere;
- (b) annealing the biaxially stretched film at a temperature of 150.degree.-450.degree. C. in an inert atmosphere, thereby forming a biaxially stretch-oriented film of conjugated polymer of the formula:
- --R--CH.dbd.CH).sub.n
- wherein R, defined as above, forms a conjugated system with the vinylene group, and n is an integer of up to 50,000;
- (c) pyrolyzing said annealed film at a temperature of 400.degree.-3500.degree. C. in an inert atmosphere;
- and
- (d) contacting the pyrolyzed film with a dopant, wherein the amount of dopant is 0.1 to 150% based on the weight of the pyrolyzed film.
Dependencies are inferred from the claim text.