SYNTHESIS OF BIMODAL POLYETHYLENE WITH UNSYMMETRICAL <italic style="font-style: italic">α</italic>-DIIMINE NICKEL COMPLEXES: INFLUENCE OF LIGAND BACKBONE AND <italic style="font-style: italic">UNSYM</italic>-SUBSTITUTED ANILINE MOIETY

Hai-yang Gao; Feng-shou Liu; Hai-bin Hu; Fang-ming Zhu; Qing Wu

doi:10.1007/s10118-013-1251-6

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SYNTHESIS OF BIMODAL POLYETHYLENE WITH UNSYMMETRICAL α-DIIMINE NICKEL COMPLEXES: INFLUENCE OF LIGAND BACKBONE AND UNSYM-SUBSTITUTED ANILINE MOIETY

Special Issue: Coordination Polymerization of Olefins | Updated：2023-01-03

- SYNTHESIS OF BIMODAL POLYETHYLENE WITH UNSYMMETRICAL α-DIIMINE NICKEL COMPLEXES: INFLUENCE OF LIGAND BACKBONE AND UNSYM-SUBSTITUTED ANILINE MOIETY
- Chinese Journal of Polymer Science Vol. 31, Issue 4, Pages: 563-573(2013)
- Affiliations：
  
  DSAPM Lab, PCFM Lab, Institute of Polymer Science, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China
- Author bio：
  
  **Qing Wu (伍青), E-mail: ceswuq@mail.sysu.edu.cn
- Funds：
- DOI：10.1007/s10118-013-1251-6
  CLC：
- Received：26 October 2012，
  
  Revised：2012-11-20，
  
  Accepted：28 November 2012，
  
  Published：2013-04
- Accepted：
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Hai-yang Gao, Feng-shou Liu, Hai-bin Hu, et al. SYNTHESIS OF BIMODAL POLYETHYLENE WITH UNSYMMETRICAL α-DIIMINE NICKEL COMPLEXES: INFLUENCE OF LIGAND BACKBONE AND UNSYM-SUBSTITUTED ANILINE MOIETY[J]. Chinese Journal of Polymer Science, 2013, 31(4): 563-573. DOI: 10.1007/s10118-013-1251-6.
DOI：

Hai-yang Gao, Feng-shou Liu, Hai-bin Hu, et al. SYNTHESIS OF BIMODAL POLYETHYLENE WITH UNSYMMETRICAL α-DIIMINE NICKEL COMPLEXES: INFLUENCE OF LIGAND BACKBONE AND UNSYM-SUBSTITUTED ANILINE MOIETY[J]. Chinese Journal of Polymer Science, 2013, 31(4): 563-573. DOI: 10.1007/s10118-013-1251-6. DOI：

摘要

Abstract

A series of unsymmetrical

-diimine nickel complexes with various backbones and substituted aniline moieties were synthesized and characterized. The crystallographic analysis of the nickel complexes confirmed the existence of

meso

-and

rac

-configuration in solid structure. Nickel complexes after activation by MAO were screened for ethylene polymerization to evaluate backbone substituent effect on synthesis of bimodal PE. Acenaphthyl nickel complex with planar backbone afforded a bimodal PE with a broad polydispersity

whereas camphyl nickel complex with rigid and bulky backbone afforded a monomodal PE with a narrow polydispersity. Steric effect of aniline moiety for acenaphthyl nickel complex was also examined

and bimodal PE with dominant high-molecular-weight fraction was obtained by modifying substituents on aniline moiety.

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SYNTHESIS OF BIMODAL POLYETHYLENE WITH UNSYMMETRICAL α-DIIMINE NICKEL COMPLEXES: INFLUENCE OF LIGAND BACKBONE AND UNSYM-SUBSTITUTED ANILINE MOIETY

DOI：10.1007/s10118-013-1251-6

摘要

Abstract

关键词

Keywords

references