Living random copolymerization of propylene and norbornene with ansa-fluorenylamidodimethyltitanium complex:: Synthesis of novel syndiotactic polypropylene-b-poly(propylene-ran-norbornene)

被引:56
作者
Cai, ZG
Nakayama, Y
Shiono, T
机构
[1] Hiroshima Univ, Grad Sch Engn, Higashihiroshima 7398527, Japan
[2] Tokyo Inst Technol, Chem Resources Lab, Midori Ku, Yokohama, Kanagawa 2268503, Japan
关键词
D O I
10.1021/ma060122x
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 synthesis of novel syndiotactic polypropylene-b-poly(propylene-ran- norbornene) was described. The catalytic system promoted living random copolymerization of propylene and norbornene with high activity and was effective for the synthesis of novel block copolymers consisting of syndiotactic and poly(propylene-ran-norbornene) sequences. The catalytic system showed high activity and gave high-molecular-weight copolymer for 1 min with narrow molecular-weight distribution (MWD). The results testified that the copolymerization of propylene and norbornene proceeded in a living manner.
引用
收藏
页码:2031 / 2033
页数:3
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