<論文>トリクロロシランの部分電解還元による非対称置換直鎖ポリシラン合成の試み

概要

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Asymmetrically substituted linear polysilanes are important as new functional materials because of their good film forming ability in addition to the unique properties of polysilanes. In order to obtain these polymers, asymmetrically substituted monomers has been used. However, preparation of such monomers requires several reaction steps and that makes the total yield of the target polymers very low. In order to establish a better preparation pathway, here presented new method utilized monosubstituted trichloromonomers, (^1RSiCl_3). First, partial electrochemical reduction of the monomers was carried out to obtain linear polymers, (^1RClSi)_n, and then subsequent reaction with Grignard reagent was carried out to introduce the second substituent group and to obtain the asymmetrically substituted polymers, (^1R^2RSi)_n. Thus obtained polymers contained more or less partial network structures in the dominating linear structures because of undesirable networking reactions during the electrochemical reactions. However they showed mostly the typical properties of linear polymers.
東京工芸大学の論文
2002-01-31