Ethylene-norbornene copolymerization by new titanium complexes bearing tridentate ligands. Sidearm effects on catalytic activity

被引：62
作者：
Gao, Mingh
Wang, Cong
Sun, Xiuh
Qian, Changtao
Ma, Zhi
Bu, Shizheng
Tang, Yong
Xie, Zuowei
机构：
[1] Chinese Acad Sci, Shanghai Inst Organ Chem, State Key Lab Organomet Chem, Shanghai 200032, Peoples R China
[2] Chinese Univ Hong Kong, Dept Chem, Hong Kong, Hong Kong, Peoples R China
来源：
MACROMOLECULAR RAPID COMMUNICATIONS | 2007年 / 28卷 / 15期
关键词：
catalyst; copolymerization; group; 4; metal; norbornene; olefin;
D O I：
10.1002/marc.200700305
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The Ti complexes containing tridentate [O(-)NS(R)] (R = (i)Pr) ligands with alkylthio sidearms were prepared. The methylthio ether complex (R = Me shown in the Scheme) exhibits an excellent activity for copolymerization of ethylene with norbornene upon activation with MMAO, which is 10 times more active than the corresponding phenylthio one (R = Ph).
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页码：1511 / 1516
页数：6
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