应用化学 ›› 1996, Vol. 0 ›› Issue (4): 110-112.

• 研究简报 • 上一篇    下一篇

茂锆载体催化剂下的乙烯/辛烯共聚及聚合物的13C NMR研究

刘胜生, 于广谦, 黄葆同   

  1. 中国科学院长春应用化学研究所 长春 130022
  • 收稿日期:1995-10-17 修回日期:1996-04-08 出版日期:1996-08-10 发布日期:1996-08-10
  • 基金资助:
    国家自然科学基金

Ethylene/Octene Copolymerization with Supported Zirconocene Catalysts and the 13C NMR Analysis of Copolymers

Liu Shengsheng, Yu Guangqian, Huang Baotong   

  1. Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022
  • Received:1995-10-17 Revised:1996-04-08 Published:1996-08-10 Online:1996-08-10

摘要: 由于茂错催化剂具有高活性,单一活性中心等特点,并且能在均相条件下实现α-烯烃的定向聚合,从而引起高分子学术界的广泛关注.由于均相聚合物需很高的Al/Zr比,近年来出现了载体催化剂的研究报道.本工作在SiO2载体催化剂的基础上,合成了一类新的聚合物载体催化剂,研究了该催化剂下乙烯/辛烯共聚合.

关键词: 茂锆载体催化剂, 共聚, 序列分布, 13C NMR

Abstract: Copolymerization of ethylene/octene-1 was investigated by using two types of supported zirconocene catalysts, Zr/MAO/SiO2 and Zr/MAO/SAA,where SiO2 and poly(styrene-acrylamide ) (SAA) were used as carriers respectively. The results showed that the catalysts have high copolymerization ability. The triad sequence distribution and mean sequence lengths of monomers in the copolymers have been calculated by 13C NMR data.

Key words: supported zirconocene catalyst, copolymerization, sequence distribution, 13C NMR