Enhancement on Hemilabile Phosphine-Amide Palladium and Nickel Catalysts for Ethylene (Co)Polymerization with Polar Monomers Using a Cyclizing Strategy

Lei Cui; Yu-Kai Chu; Da-Jun Liu; Ying-Feng Han; Hong-Liang Mu; Zhong-Bao Jian

doi:10.1007/s10118-022-2650-3

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Enhancement on Hemilabile Phosphine-Amide Palladium and Nickel Catalysts for Ethylene (Co)Polymerization with Polar Monomers Using a Cyclizing Strategy

RESEARCH ARTICLE | Updated：2022-03-23

- Enhancement on Hemilabile Phosphine-Amide Palladium and Nickel Catalysts for Ethylene (Co)Polymerization with Polar Monomers Using a Cyclizing Strategy
- Chinese Journal of Polymer Science Vol. 40, Issue 3, Pages: 241-247(2022)
- Affiliations：
  
  a.State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
  b.School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun 130022, China
  c.Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi’an 710127, China
- Author bio：
  
  muhongliang@ciac.ac.cn (H.L.M.)
  zbjian@ciac.ac.cn (Z.B.J.)
- Funds：
- DOI：10.1007/s10118-022-2650-3
  CLC：
- Received：30 August 2021，
  
  Revised：2021-9-29，
  
  Accepted：05 October 2021，
  
  Online First：11 January 2022，
  
  Published：01 March 2022
- Accepted：
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Cui, L.; Chu, Y. K.; Liu, D. J.; Han, Y. F.; Mu, H. L.; Jian, Z. B. Enhancement on hemilabile phosphine-amide palladium and nickel catalysts for ethylene (co)polymerization with polar monomers using a cyclizing strategy. Chinese J. Polym. Sci. 2022, 40, 241–247

Lei Cui, Yu-Kai Chu, Da-Jun Liu, et al. Enhancement on Hemilabile Phosphine-Amide Palladium and Nickel Catalysts for Ethylene (Co)Polymerization with Polar Monomers Using a Cyclizing Strategy[J]. Chinese Journal of Polymer Science, 2022, 40(3): 241-247.
Cui, L.; Chu, Y. K.; Liu, D. J.; Han, Y. F.; Mu, H. L.; Jian, Z. B. Enhancement on hemilabile phosphine-amide palladium and nickel catalysts for ethylene (co)polymerization with polar monomers using a cyclizing strategy. Chinese J. Polym. Sci. 2022, 40, 241–247 DOI： 10.1007/s10118-022-2650-3.

Lei Cui, Yu-Kai Chu, Da-Jun Liu, et al. Enhancement on Hemilabile Phosphine-Amide Palladium and Nickel Catalysts for Ethylene (Co)Polymerization with Polar Monomers Using a Cyclizing Strategy[J]. Chinese Journal of Polymer Science, 2022, 40(3): 241-247. DOI： 10.1007/s10118-022-2650-3.

摘要

Abstract

To address the issue of hemilabile catalyst in olefin polymerization catalysis

a cyclizing strategy was used to construct novel

-bridged phosphine-carbonyl palladium and nickel catalysts

resulting in improvements on ethylene (co)polymerizations. The

N-

bridged phosphine-carbonyl Pd catalysts (

Pd1

−

Pd5

) and Ni catalysts (

Ni1

−

Ni5

) bearing five- to eight-membered-ring structures were designed and synthesized. Catalytic performance for ethylene (co)polymerization became better as the size of

-containing bridge increased. The seven-membered-ring bridged catalysts

Pd4

and

Ni4

exhibited the best performance in terms of catalytic activity

polymer molecular weight and incorporation of acrylates and acrylic acid. The better performance of these catalysts bearing larger-size bridges was tentatively attributed to the methylene-induced higher electron density around nitrogen

which strenghtens the coordination of carbonyl group to metal center

and also to the steric effect offered by this cyclization. This work provides a new strategy to enhance hemilabile polymerization catalysts.

关键词

Keywords

references

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