高等学校化学学报 ›› 2001, Vol. 22 ›› Issue (1): 160.

• 研究简报 • 上一篇    下一篇

茂钛/MAO催化体系进行降冰片烯聚合的研究

吕英莹, 伍青, 卢泽俭   

  1. 中山大学高分子研究所, 广州 510275
  • 收稿日期:1999-09-10 出版日期:2001-01-24 发布日期:2001-01-24
  • 通讯作者: 伍 青(1954年出生),男,博士,教授,主要从事新型聚烯烃材料合成与功能化研究.
  • 基金资助:

    国家自然科学基金(批准号:29974039)资助

Studies on Polymerization of Norbornene with Titanocene/MAO Catalyst System

LU Ying-Ying, WU Qing, LU Ze-Jian   

  1. Institute of Polymer Science, Zhongshan University, Guangzhou 510275, China
  • Received:1999-09-10 Online:2001-01-24 Published:2001-01-24

关键词: 茂金属催化剂, 降冰片烯, 加成聚合

Abstract: Vinyl-type polymerization of norbornene has been carried out with half-titanocene/MAOcatalysts. It was found that the Cp(cyclopentadienyl)-bearing titanocene catalysts afford the polynorbornene at much higher yield than the related Cp*(pentamethylcyclopentadienyl)-bearing one. On the other hand, substitution of —ORligand for chlorine at the Cp-bearing compound causes remarkbaly increase in catalytic activity. The optimum temperature for the polymerization is 60 ℃. All the polynorbornenes obtained with CpTi(OCH2Ph)3/MAOcatalyst are soluble in the organic solvents such as cyclohexane and monochlorobenzene. The FTIRand 13C NMRspectra indicate that the polynorbornene obtained is vinyl-type polymer and has low stereo-regularity.

Key words: Metallocene catalyst, Norbornene, Vinyl-type polymerization

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