Method of producing silicon carbide preceramic vinyl-containing

Details Method of producing silicon carbide preceramic vinyl-containing Method of producing silicon carbide preceramic vinyl-containing

1987-09-08

1989-12-26

Miller, Edward A.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

528 10, 528 25, 528 33, C08F28300, C08G 7704

Patent

active

048898996

ABSTRACT:
A method is described to prepare preceramic polysilanes which contain at least one weight percent vinyl. To ensure the survival of the vinyl groups in the polysilane the reaction and process conditions must be carefully controlled. The vinyl-containing polysilanes can be formed into fibers, cured either thermally or by UV irradiation, and then pyrolyzed to form ceramic fibers. Thermal curing and pyrolysis can be combined into a single process step.

REFERENCES:
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patent: 4298559 (1981-11-01), Baney et al.
patent: 4310651 (1982-01-01), Baney et al.
patent: 4314956 (1982-01-01), Baney et al.
patent: 4546163 (1985-09-01), Haluska
patent: 4595472 (1986-06-01), Haluska
patent: 4639501 (1987-01-01), Seyferth
Baney et al; "Methylchloropolysilane & Derivatives Prepared from the Redistribution of Methylchlorodisilanes"; 1983, 2, 859; Organometallics.
West, et all; "Polysilane High Polymers as Precursors to Silicon Carbide"; (1984), 25, 4; Polym. Prepr.

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