Redox-Controlled Olefin (Co)Polymerization Catalyzed by Ferrocene-Bridged Phosphine-Sulfonate Palladium Complexes

被引：139

作者：

Chen, Min ^{[1
]}

Yang, Bangpei ^{[1
]}

Chen, Changle ^{[1
]}

机构：

[1] Chinese Acad Sci, Univ Sci & Technol China, Dept Polymer Sci & Engn, Key Lab Soft Matter Chem, Hefei 230026, Peoples R China

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2015年 / 54卷 / 51期

基金：

中国国家自然科学基金;

关键词：

copolymerization; olefin polymerization; palladium catalysis; polar monomers; redox chemistry; BIS(IMINO)PYRIDINE IRON; CHAIN-WALKING; POLYMERIZATION; ETHYLENE; COPOLYMERIZATION; LIGANDS; LACTIDE;

D O I：

10.1002/anie.201507274

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The facile and reversible interconversion between neutral and oxidized forms of palladium complexes containing ferrocene-bridged phosphine sulfonate ligands was demonstrated. The activity of these palladium complexes could be controlled using redox reagents during ethylene homopolymerization, ethylene/methyl acrylate copolymerization, and norbornene oligomerization. Specifically in norbornene oligomerization, the neutral complexes were not active at all whereas the oxidized counterparts showed appreciable activity. In situ switching between the neutral and oxidized forms resulted in an interesting "off" and "on" behavior in norbornene oligomerization. This work provides a new strategy to control the olefin polymerization process.

引用

页码：15520 / 15524

页数：5