高等学校化学学报 ›› 1999, Vol. 20 ›› Issue (2): 327.

• 研究简报 • 上一篇    下一篇

聚合物负载的CpTiCl3催化苯乙烯间规聚合

徐君庭1, 欧阳建莹2, 范志强1, 陈德铨2, 封麟先1   

  1. 1. 浙江大学高分子科学与工程学系, 杭州 310027;
    2. 上海石油化工研究院, 上海 201208
  • 收稿日期:1998-05-05 出版日期:1999-02-24 发布日期:1999-02-24
  • 通讯作者: 徐君庭,男,29岁,博士,副教授.
  • 作者简介:徐君庭,男,29岁,博士,副教授.
  • 基金资助:

    国家教育部资助(批准号:967486);上海石油化工研究院资助

Syndiospecific Polymerization of Styrene Catalyzed Using Polymer Supported CpTiCl3

XU Jun-Ting1, OUYANG Jian-Ying2, FAN Zhi-Qiang1, CHEN De-Quan2, FENG Lin-Xian1   

  1. 1. Departmen of Polymer Science & Engineering, Zhejiang University, Hangzhou, 10027;
    2. Shanghai Research Institute of Petrochemical Technology, Shanghai, 01208
  • Received:1998-05-05 Online:1999-02-24 Published:1999-02-24

摘要: 苯乙烯间规聚合催化剂[1]的发现引起了工业界和学术界的重视[2~4],现已积极开展了各方面的工作,其中之一就是将催化剂负载化[5~9].但是以往的研究表明,将均相催化剂负载于无机载体上,如Al2O3,MgCl2和SiO2等.

关键词: 负载型催化剂, CpTiCl3, 苯乙烯, 间规聚合

Abstract: CpTiCl3was supported on two kinds of styrene copolymer with different hydroxyl contents and polymerization behavior of styrene using the polymersupported catalysts was investigated. The supported catalysts show high activity and the percentage of butanoneinsoluble part of the polystyrene obtained is considerably high. The supported catalysts can catalyze styrene polymerization at lower Al/Ti ratio, lower catalyst concentration and higher temperature, the molecular weight of polystyrene is also enhanced. These indicate that polymer carrier can stabilize the active sites. This effect is more obviously observed when CpTiCl3is supported on polymer with higher hydroxyl content.

Key words: Supported catalyst, CpTiCl3, Styrene, Syndiospecific polymerization

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