Alternating Copolymerization of Carbon Dioxide and Epoxide by a Nickel Thiaporphyrin Complex

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  • HONDA Satoshi
    Department of Industrial Chemistry, Faculty of Engineering, Tokyo University of Science
  • NAKAZAWA Akihito
    Department of Industrial Chemistry, Faculty of Engineering, Tokyo University of Science
  • SUGIMOTO Hiroshi
    Department of Industrial Chemistry, Faculty of Engineering, Tokyo University of Science

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Other Title
  • ニッケルチアポルフィリン錯体による二酸化炭素–エポキシドの交互共重合
  • ニッケルチアポルフィリン サクタイ ニ ヨル ニサンカ タンソ : エポキシド ノ コウゴ キョウ ジュウゴウ

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Abstract

In this study, we report on the alternating copolymerization of carbon dioxide and cyclohexene oxide by a newly designed nickel thiaporphyrin complex [(STTP)NiCl; 1] catalyst. The copolymerization of cyclohexene oxide in the presence of 1 in THF at 40°C under 50 atm of CO2 selectively produced poly(cyclohexene carbonate) (PCHC). The dependence of this polymerization system on solvent, temperature, and CO2 pressure was examined. Furthermore, a series of Lewis bases or quaternary salts were added as a cocatalyst, revealing that the alternating manner of PCHC was definitively improved by using triphenylphosphine (Ph3P). The dependence of the polymerization system on the [1]/[Ph3P] ratio was further examined.

Journal

  • KOBUNSHI RONBUNSHU

    KOBUNSHI RONBUNSHU 70 (10), 544-549, 2013

    The Society of Polymer Science, Japan

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