高等学校化学学报

高等学校化学学报 ›› 2002, Vol. 23 ›› Issue (5): 982.

• 研究简报 • 上一篇    

新型非对称二醚给电子体丙烯聚合催化剂研究

徐德民1, 马志1, 宓霞1, 柯毓才1, 胡友良1, 吴春红2   

  1. 1. 中国科学院化学研究所分子科学中心, 工程塑料国家重点实验室, 北京 100080;
    2. 燕山石油化工研究院分析中心, 北京 102500
  • 收稿日期:2000-12-19 出版日期:2002-05-24 发布日期:2002-05-24
  • 通讯作者: 胡友良(1942年出生),男,研究员,博士生导师,从事烯烃催化聚合研究.E-mail:huyl@infoc3.icas.ac.cn E-mail:huyl@infoc3.icas.ac.cn
  • 基金资助:

    国家重点基础研究发展规划项目(批准号:G1999064800)资助.

Studies on Catalyst Containing Novel Asymmetric Diether forPropene Polymerization

XU De-Min1, MA Zhi1, MI Xia1, KE Yu-Cai1, HU You-Liang1, WU Chun-Hong2   

  1. 1. State Key Laboratory of Engineering Plastics, Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China;
    2. Analysis Center, Research Institute of Yanshan Petrochemical Co. Ltd., Beijing 102500, China
  • Received:2000-12-19 Online:2002-05-24 Published:2002-05-24

PDF (PC)

被引次数

36

关键词: 二醚, Ziegler－Natta催化剂, 聚丙烯

Abstract: MgCl2 supported Ziegler-Natta catalyst containing a novel asymmetric diether as internal donor was prepared for polymerization of propene.The effects of polymerization temperature and the n(Al)/ n(Ti) ratio on the catalytic activity and the molecular weight, the isotacticity and the melting point of polypropene were investigated.In comparison with the symmetric diether catalysts, the catalytic activity and the isotacticity of polypropene were much lower.The stereosequence distributions were analyzed by means of 13C NMR and the results obtained indicate that isotactic, syndiotactic and iso-syndiotactic block polypropenes were produced.The stereo effect of MBF and the polymerization mechanism were discussed.

Key words: Diether, Ziegler-Natta catalyst, Polypropene

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