Ligand Steric Effects on Naphthyl-<italic style="font-style: italic">α</italic>-diimine Nickel Catalyzed <italic style="font-style: italic">α</italic>-Olefin Polymerization

Fu-Zhou Wang; Su-Su Tian; Rui-Ping Li; Wei-Min Li; Chang-Le Chen

doi:10.1007/s10118-018-2038-6

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Ligand Steric Effects on Naphthyl-α-diimine Nickel Catalyzed α-Olefin Polymerization

Articles | Updated：2021-02-18

- Ligand Steric Effects on Naphthyl-α-diimine Nickel Catalyzed α-Olefin Polymerization
- Chinese Journal of Polymer Science Vol. 36, Issue 2, Pages: 157-162(2018)
- Affiliations：
  
  a.Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, School of Pertrochemical Engineering, Changzhou University, Changzhou 213164, China
  b.Chinese Academy of Sciences Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China
- Author bio：
  
  E-mail wangfuzhou1718@126.com (F.Z.W.)
  E-mail changle@ustc.edu.cn (C.L.C)
- Funds：
- DOI：10.1007/s10118-018-2038-6
  CLC：
- Received：17 August 2017，
  
  Accepted：07 September 2017，
  
  Online First：01 November 2017，
  
  Published：05 February 2018
- Accepted：
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Fu-Zhou Wang, Su-Su Tian, Rui-Ping Li, et al. Ligand Steric Effects on Naphthyl-α-diimine Nickel Catalyzed α-Olefin Polymerization[J]. Chinese Journal of Polymer Science, 2018, 36(2): 157-162. DOI: 10.1007/s10118-018-2038-6.
DOI：

Fu-Zhou Wang, Su-Su Tian, Rui-Ping Li, et al. Ligand Steric Effects on Naphthyl-α-diimine Nickel Catalyzed α-Olefin Polymerization[J]. Chinese Journal of Polymer Science, 2018, 36(2): 157-162. DOI: 10.1007/s10118-018-2038-6. DOI：

摘要

Abstract

Naphthyl-

-diimine nickel complexes with systematically varied ligand sterics

activated by modified methylaluminoxane (MMAO)

were tested in the polymerization of higher

-olefin (1-hexene

1-decene and 1-hexadecene) under suitable conditions. The polymerization results indicated the possibility of precise microstructure control

depending on catalyst structure

polymerization temperature

monomer concentration and types of monomers

which in turn strongly affects the resultant polymer properties. Naphthyl-

-diimine nickel complex bearing chiral bulky

sec

-phenethyl groups in the

-naphthyl position showed good catalytic activity

and resulted in branched polymers (42-88/1000C) with high molecular weights (

:(4.3-15.2)×10

g·mol

-1

) and narrow molecular weight distribution (

=1.13-1.29

RT)

which suggested a living polymerization. The increasing steric hindrance of catalyst leads to enhance insertion for 2

1-insertion of

-olefin and the chain-walking reaction.

关键词

Keywords

references

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Ligand Steric Effects on Naphthyl-α-diimine Nickel Catalyzed α-Olefin Polymerization

DOI：10.1007/s10118-018-2038-6

摘要

Abstract

关键词

Keywords

references