Dimethylphenylsilylmethylpolysilane and method for producing the same
AssigneeYuki Gosei Kogyo Co., Ltd.
InventorsYoichiro Nagai, Hamao Watanabe
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Abstract
A dimethylphenysilylmethylpolysilane is prepared by condensating 1,1-dichloro-1,2,2-trimethyl-2-phenyldisilane in the presence of an alkali metal or alkali earth metal, in an aprotic solvent. This polymer is a viscous liquid which has a weight average molecular weight in the range of from 5,000 to 500,000 and a narrow molecular weight distribution, and has various uses as electroconductors, photoresist and optical information recording materials.
Claims7
A dimethylphenylsilylmethylpolysilane having a repeating unit represented by the formula [I] and having a weight average molecular weight of from 5,000 to 500,000:
- ##STR4## wherein, Ph is phenyl and Me is methyl.
A method for producing a dimethylphenylsilylmethylpolysilane having a repeating unit represented by the formula [I]:
- ##STR5## wherein, Ph is phenyl and Me is methyl, and having a weight average molecular weight of from 5,000 to 500,000, which comprises the step of condensating 1,1-dichloro-1,2,2-trimethyl-2-phenyldisilane represented by the formula [II]:
- PhMe.sub.2 SiSiCl.sub.2 Me [II]
- wherein, Ph is phenyl and Me is methyl, in the presence of an alkaline metal or alkali earth metal, in an aprotic solvent.
Dependencies are inferred from the claim text.