| 摘要 |
PROBLEM TO BE SOLVED: To provide a novel silicone polymer that can be formed into a film at a temperature of 500°C or higher and give a film having characteristics of high transparency and crack resistance.SOLUTION: A production method of a silicone polymer is provided, in which 4-methoxybenzyl trimethoxysilane is hydrolyzed in a mixture solvent of an aprotic solvent and an alcohol solvent or a mixture solvent of a ketone solvent and an alcohol solvent in the presence of a basic catalyst, and further subjected to condensation polymerization to produce a silicone polymer having a structural unit represented by the formula below. In the production method, the basic catalyst is tetrabutylammonium hydroxide, tetraethylammonium hydroxide, or tetramethylammonium hydroxide. |
