Formation of linear copolymers of ethylene and acrylonitrile catalyzed by phosphine sulfonate palladium complexes

被引：241

作者：

Kochi, Takuya ^{[1
]}

Noda, Shusuke ^{[1
]}

Yoshimura, Kenji ^{[1
]}

Nozaki, Kyoko ^{[1
]}

机构：

[1] Univ Tokyo, Grad Sch Engn, Dept Chem & Biotechnol, Bunkyo Ku, Tokyo 1138656, Japan

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2007年 / 129卷 / 29期

关键词：

OLEFIN POLYMERIZATION; INSERTION REACTIONS; ALKYL COMPLEXES; C-13; NMR; TOPOLOGY; CHAIN; NORBORNENE; MONOMERS; LIGANDS; ETHENE;

D O I：

10.1021/ja0725504

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Linear copolymers of ethylene and acrylonitrile were prepared using palladium complexes bearing phosphine-sulfonate bidentate ligands. Acrylonitrile units located in the linear polyethylene backbones were detected for the first time by C-13 NMR spectroscopy. Catalyst systems employing isolated palladium complexes such as 3 showed much higher activity for the copolymerization than the in situ generation procedures, and molecular weight of the copolymers and acrylonitrile incorporation were dependent on the palladium complexes. Obtained linear copolymers of ethylene and acrylonitrile melt at higher temperature than branched copolymers.

引用

页码：8948 / +

页数：3

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