Design of Efficient Early Transition Metal Complex Catalysts for Synthesis of New Polyolefins by Precise Olefin Polymerization

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  • NOMURA Kotohiro
    Graduate School of Materials Science, Nara Institute of Science and Technology

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  • 遷移金属触媒がもたらす高性能，高機能，新規ポリマー　　新規ポリオレフィンの精密合成を可能とする高性能遷移金属錯体触媒の設計・創製
  • シンキ ポリオレフィン ノ セイミツ ゴウセイ オ カノウ ト スル コウセイノウ センイ キンゾク サクタイ ショクバイ ノ セッケイ ソウセイ

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Abstract

Selected successful examples for precise synthesis of new polyolefins by coordination insertion polymerization, especially by copolymerization of ethylene with new comonomer (s) using newly designed complex catalysts have been introduced. Efficient copolymerization of ethylene with styrene can be achieved by so called half-titanocene catalysts, and the ligand modification should play an essential key role especially for the efficient styrene incorporation. Efficient introduction of functional group into polyolefins has also been achieved by the (direct) copolymerization using nonbridged half-titanocenes, and a new synthetic strategy for precise, efficient synthesis of polyolefins containing polar functionalities with uniform compositions (as well as with uniform molecular weight distribution) under mild (environmentally benign) conditions can be demonstrated.

Journal

  • NIPPON GOMU KYOKAISHI

    NIPPON GOMU KYOKAISHI 81 (10), 400-407, 2008

    THE SOCIRETY OF RUBBER SCIENCE AND TECHNOLOGYY, JAPAN

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