Citation: Di Xu, Xiang-Xiang Zhao, Zhong-Tao Chen, Yu-Guo Ma. Synergistic Effect and Fluorination Effect in Ethylene Polymerization by Nickel Phenoxyiminato Catalysts[J]. Chinese Journal of Polymer Science, ;2018, 36(2): 244-251. doi: 10.1007/s10118-018-2081-3 shu

Synergistic Effect and Fluorination Effect in Ethylene Polymerization by Nickel Phenoxyiminato Catalysts

Beijing National Laboratory for Molecular Sciences(BNLMS), Center for Soft Matter Science and Engineering, Key Lab of Polymer Chemistry & Physics of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China

Corresponding author: Yu-Guo Ma, ygma@pku.edu.cn
Received Date: 30 September 2017
Accepted Date: 30 October 2017
Available Online: 24 November 2017

A series of binuclear nickel phenoxyiminato catalysts with different linkers and fluorine substituents were efficiently synthesized. Binuclear nickel catalysts with rigid linkers showed higher catalytic activity and thermal stability in ethylene polymerization and produced polymers with higher molecular weight possibly due to the larger steric hindrance and metal-metal synergistic effect. The introduction of fluorine atoms on the N-terphenyl moity also enhanced polymerization activity and molecular weight of polymer due to the electronic effect of fluorine atoms.
- Nickel phenoxyiminato catalysts,
- Fluorination effect,
- Synergistic effect,
- Bimetallic catalysts
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