应用化学 ›› 1996, Vol. 0 ›› Issue (6): 81-83.

• 研究简报 • 上一篇    下一篇

Nd(i-PrO)2Cl-AlEt3均相二元催化剂异戊二烯聚合动力学──Ⅲ.AlEt3的链转移作用

蔡小平1, 龚志1, 王佛松1, 朱行洁2, 李秀华2   

  1. 1. 中国科学院长春应用化学研究所 长春 130022;
    2. 吉林化工集团公司研究院 吉林
  • 收稿日期:1996-03-15 修回日期:1996-05-17 出版日期:1996-12-10 发布日期:1996-12-10
  • 基金资助:
    国家自然科学基金

Kinetics of Isoprene Polymerization with Nd (i-PrO)2Cl-AlEt3 Soluble Catalyst System──Ⅲ.The Chain Transfer to AlET3

Cai Xiaoping1, Gong Zhi1, Wang Fosong1, Zhu Xinghao2, Li Xiuhua2   

  1. 1. Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022;
    2. Research Institute of Jilin Chemical industry Corporation, Jilin
  • Received:1996-03-15 Revised:1996-05-17 Published:1996-12-10 Online:1996-12-10

摘要: 前报研究Nd(i-Pro)2Cl-AlEt3均相稀土催化剂异戊二烯聚合一般动力学行为及动力学参数的测定,本报考察本体系中AlEt3的链转移作用.

关键词: 异戊二烯, 聚合动力学, 均相催化剂, 链转移

Abstract: The chain transfer to AlEt3 in the polymerization of isoprene with Nd(i-PrO)2Cl-AlEt3 has been carried out.The chain transfer activation energy of isoprene polymerization has been found to be 176 kJ/mol in heptane.The results showed that the chain transfer to AlEt3 is very low in this system.

Key words: polyisoprene, kinetics of polymerization, homogeneous catalyst, chain transfer