高等学校化学学报

高等学校化学学报

• 研究论文 • 上一篇    下一篇

Schiff碱钛配合物催化n-辛基联烯聚合

朱伟伟, 倪旭峰, 沈之荃   

  1. 浙江大学高分子科学研究所, 教育部高分子合成与功能构造重点实验室, 杭州 310027
  • 收稿日期:2008-10-13 修回日期:1900-01-01 出版日期:2008-12-10 发布日期:2008-12-10
  • 通讯作者: 倪旭峰, 沈之荃

Polymerization of n-Octylallene Catalyzed by Titanium Schiff-base Complex

ZHU Wei-Wei, NI Xu-Feng*, SHEN Zhi-Quan*   

  1. Key Laboratory of Macromolecule Synthesis and Functionalization of Ministry of Education, Institute of Polymer Science, Zhejiang University, Hangzhou 310027, China
  • Received:2008-10-13 Revised:1900-01-01 Online:2008-12-10 Published:2008-12-10
  • Contact: NI Xu-Feng, SHEN Zhi-Quan

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被引次数

5

摘要： 采用简便的方法, 合成了Schiff碱钛配合物Ti(Salen)2Cl2[Salen为N,N-(3,5-di-tert-butylsalicylidene)anilinato]并与Al(i-Bu)3组成二元催化体系用于n-辛基联烯的聚合. 实验结果表明, 在单体与催化剂摩尔比为100, n(Al)/n(Ti)=50, 催化剂于80 ℃陈化时间1 h后, 于80 ℃本体聚合16 h得到聚n-辛基联烯, 转化率100%, 分子量Mw=1.1×105, MWD=1.77, 1,2聚合链节单元质量分数为50%.

关键词: Schiff碱钛配合物, n-辛基联烯, 聚合

Abstract: A titanium Schiff-base complex having two phenoxy-imine chelate ligands combined with Al(i-Bu)3 has high catalytic performance for the polymerization of n-octylallene. The complex [Ti(Salen)2Cl2] was synthesized with high yield by reacting the Schiff-base ligand with TiCl4 in n-hexane. The optimum reaction conditions for the polymerization are: n(M)/n(Ti)=100, n(Al)/n(Ti)=50, aged at 80 ℃ for 1 h, polymerized at 80 ℃ for 16 h in bulk, and the poly-n-octylallene obtained has 100% yield, Mw=1.1×105, MWD=1.77 and 50% 1,2-polymerized units.

Key words: Titanium Schiff-base complex, n-Octylallene, Polymerization

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