A Phenol-containing <italic style="font-style: italic">α</italic>-Diimine Ligand for Nickel- and Palladium-Catalyzed Ethylene Polymerization

Chen Tan; Wen-Min Pang; Chang-Le Chen

doi:10.1007/s10118-019-2232-1

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A Phenol-containing α-Diimine Ligand for Nickel- and Palladium-Catalyzed Ethylene Polymerization

ARTICLE | Updated：2021-02-18

- A Phenol-containing α-Diimine Ligand for Nickel- and Palladium-Catalyzed Ethylene Polymerization
- Chinese Journal of Polymer Science Vol. 37, Issue 10, Pages: 974-980(2019)
- Affiliations：
  
  Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China
- Author bio：
  
  changle@ustc.edu.cn
- Funds：
- DOI：10.1007/s10118-019-2232-1
  CLC：
- Received：26 December 2018，
  
  Revised：2019-1-21，
  
  Accepted：22 January 2019，
  
  Online First：01 March 2019，
  
  Published：2019-10
- Accepted：
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Citation: Tan, C.; Pang, W. M.; Chen, C. L. A phenol-containing α-diimine ligand for nickel- and palladium-catalyzed ethylene polymerization. Chinese J. Polym. Sci. 2019, 37, 974–980

Chen Tan, Wen-Min Pang, Chang-Le Chen. A Phenol-containing α-Diimine Ligand for Nickel- and Palladium-Catalyzed Ethylene Polymerization[J]. Chinese Journal of Polymer Science, 2019, 37(10): 974-980. DOI: 10.1007/s10118-019-2232-1.
Citation: Tan, C.; Pang, W. M.; Chen, C. L. A phenol-containing α-diimine ligand for nickel- and palladium-catalyzed ethylene polymerization. Chinese J. Polym. Sci. 2019, 37, 974–980 DOI： 10.1007/s10118-019-2232-1.

Chen Tan, Wen-Min Pang, Chang-Le Chen. A Phenol-containing α-Diimine Ligand for Nickel- and Palladium-Catalyzed Ethylene Polymerization[J]. Chinese Journal of Polymer Science, 2019, 37(10): 974-980. DOI: 10.1007/s10118-019-2232-1. DOI：

摘要

Abstract

A phenol-containing dibenzhydryl-based

-diimine ligand bearing hydroxy group on

para

-position of aniline moiety was designed

synthesized

and investigated in Ni- and Pd-catalyzed ethylene polymerization. The Ni complex bearing hydroxy groups resulted in not only high polyethylene molecular weight (

up to 1.5 × 10

)

but also significantly increased melting temperature (

up to 123 °C) and greatly decreased branching density (33/1000C) versus the Ni catalyst bearing OMe group on

para

-position of aniline moiety. This is consistent with the hypothesis that the deprotonation of the phenol moiety generated a phenoxide bearing strong electron-donating O

−

substituent by methylaluminoxane (MAO) cocatalyst. The Pd complexes bearing hydroxy groups exhibited similar catalytic properties to those of the Pd catalyst bearing OMe groups did.

关键词

Keywords

references

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CCDC 1887662 contains the supplementary crystallographic data for this paper. These data can be obtained free of charge from The Cambridge Crystallographic Data Centre.

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⁰

A Phenol-containing α-Diimine Ligand for Nickel- and Palladium-Catalyzed Ethylene Polymerization

DOI：10.1007/s10118-019-2232-1

摘要

Abstract

关键词

Keywords

references