Polycarbosilanes Prepared by the Polymerizations of Vinylsilane

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  • ビニルシランの重合によって得られるポリカルボシラン類
  • ビニルシラン ノ ジュウゴウ ニ ヨッテ エラレル ポリカルボシランルイ

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Three kinds of polyvinylsiances, which were different each other in the structure, were prepared by the polymerizations of vinylsilane [CH2=CH-SiH3] using a radical initiator catalyst, an anionic catalyst and a coordinated anionic catalyst (Ziegler-Natta catalyst). A coloress and transparent liquid polymer of molecular weight (Mn) 500-1500, which structure was [-CH2-CH (SiH3)-] x [-CH2-CH2SiH2-] y, and the similar liquid polymer of molecular weight (Mn) 500-1500, which structure was [-CH (CH3) -SiH2-], were obtainde in high yields in the radical and the anionic polymerization, respectively. A white solid polymer, which was slightly soluble in solvent and the structure was [-CH2-CH (SiH3)-], was obtained in the coordinated anionic polymerization. The reaction mechanisms were proposed on the base of the reactivity of the sily1 group of vinylsilane. The polymers are stable under air and have the reactive Si-H bonds. Silicon carbide was obtained by heating the polymers at high temperature under inert gas.

Journal

  • NIPPON KAGAKU KAISHI

    NIPPON KAGAKU KAISHI 1998 (8), 539-545, 1998-08-10

    The Chemical Society of Japan

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