Synthesis of polyolefins containing silacycloalkane units in the main chain, 1 copolymerization of ethylene and disubstituted diallylsilanes involving intramolecular cyclization with zirconocene catalysts

研究成果: Article査読

9 被引用数 (Scopus)

抄録

Copolymerizations of ethylene and disubstituted diallylsilanes (CH 2=CH-CH2)2R2Si (R = CH3, C6H5) have been investigated with various zirconocene catalysts using methylaluminoxane as a cocatalyst. The bridged stereospecific catalysts showed a higher reactivity for disubstituted diallylsilanes than the non-bridged aspecific catalysts, Disubstituted diallylsilanes were incorporated into the polymer chain via cyclization insertion preferentially, and formed 3,5-disubstituted silacyclohexane units in the polyethylene main chain. A zirconocene catalyst, dimethylsilylenebis(indenyl)zirconium dichloride, produced a copolymer containing pendant ullyl groups derived from the 1,2-insertion of diallyldiphenylsilane without cyclization.

本文言語English
ページ(範囲)1959-1966
ページ数8
ジャーナルMacromolecular Chemistry and Physics
206
19
DOI
出版ステータスPublished - 2005 10 6

ASJC Scopus subject areas

  • 凝縮系物理学
  • 物理化学および理論化学
  • 有機化学
  • ポリマーおよびプラスチック
  • 材料化学

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