1,2,2-trimethyl-1-phenyl polydisilane and method for producing the same
AssigneeYuki Gosei Kogyo Co., Ltd.
InventorsYoichiro Nagai, Hamao Watanabe
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Abstract
A 1,2,2-trimethyl-1-phenylpolydisilane is prepared by condensating 1,2-dichloro-1,2,2-trimethyl-1-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 1,2,2-trimethyl-1-phenylpolydisilane having a repeating unit represented by the following formula I and a weight average molecular weight ranging from 5,000 to 500,000:
- ##STR6## wherein, Me is methyl and Ph is phenyl.
A method for producing a 1,2,2-trimethyl-1-phenylpolydisilane having a repeating unit represented by the formula [I]:
- ##STR7## wherein, Me is methyl and Ph is phenyl, and having a weight average molecular weight ranging from 5,000 to 500,000, which comprises the step of condensating 1,2-dichloro-1,2,2-trimethyl-1-phenyldisilane represented by the formula [II]:
- ClMe.sub.2 SiSiMePhCl [II]
- wherein, Me is methyl and Ph is phenyl, in the presence of an alkali metal or alkaline earth metal, in an aprotic solvent.
Dependencies are inferred from the claim text.