Citation: Bing Liu, Meng-zhe Fang, Su-yun Jie, Zhi-yang Bu, Bo-Geng Li. Nickel(II) -Diimine Catalysts with Carboxyl Groups for Ethylene Oligomerization and Polymerization[J]. Chinese Journal of Polymer Science, ;2016, 34(2): 221-228. doi: 10.1007/s10118-016-1734-3 shu

Nickel(II) -Diimine Catalysts with Carboxyl Groups for Ethylene Oligomerization and Polymerization

1.
State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China

Corresponding author: Su-yun Jie,
Received Date: 14 August 2015
Revised Date: 9 September 2015

Fund Project: This work was financially supported by the National Natural Basic Research Program of China (No. 2011CB606001).

A series of nickel(II) -diimine complexes with strong electron-withdrawing carboxyl groups, having reactive hydrogen atoms, were prepared and used as precatalysts for ethylene oligomerization and/or polymerization. The influence of metal halides and ligand structure on the catalytic activity and properties of products was investigated. The results showed that nickel bromide was much more active than nickel chloride, and the substituents at the ortho-position of aryl ring had large influence on the properties of products. Therefore, the products ranging from liquid oligomers to polymers could be readily obtained by the variation of the substituents on the ligands and reaction conditions.
- -Diimine,
- Nickel,
- Ethylene,
- Oligomerization,
- Polymerization
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