Regioselective Polymerizations of <italic style="font-style: italic">α</italic>-Olefins with an <italic style="font-style: italic">α</italic>-Diamine Nickel Catalyst

Heng Liao; Jie Gao; Liu Zhong; Hai-Yang Gao; Qing Wu

doi:10.1007/s10118-019-2227-y

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Regioselective Polymerizations of α-Olefins with an α-Diamine Nickel Catalyst

ARTICLE | Updated：2021-02-18

- Regioselective Polymerizations of α-Olefins with an α-Diamine Nickel Catalyst
- Regioselective Polymerizations of α-Olefins with an α-Diamine Nickel Catalyst
- Chinese Journal of Polymer Science 2019年37卷第10期页码：959-965
- Affiliations：
  
  School of Materials Science and Engineering, PCFM Lab, GD HPPC Lab, Sun Yat-sen University, Guangzhou 510275, China
- Author bio：
  
  gaohy@mail.sysu.edu.cn
- Funds：
  
  This work was financially supported by the National Natural Science Foundation of China (Nos. 21674130, 51873234), Natural Science Foundation of Guangdong Province (No. 2017A030310349), Fundamental Research Funds for the Central Universities (No. 17lgjc02), and PetroChina Innovation Foundation (No. 2017D-5007-0505).
- DOI：10.1007/s10118-019-2227-y
  中图分类号：
- 收稿：2018-12-06，
  
  修回：2019-1-1，
  
  录用：2019-1-21，
  
  网络首发：2019-02-25，
  
  纸质出版：2019-10
- Accepted：
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Liao, H.; Gao, J.; Zhong, L.; Gao, H. Y.; Wu, Q. Regioselective polymerizations of α-olefins with an α-diamine nickel catalyst. Chinese J. Polym. Sci. 2019, 37, 959–965.

Heng Liao, Jie Gao, Liu Zhong, et al. Regioselective Polymerizations of α-Olefins with an α-Diamine Nickel Catalyst[J]. Chinese Journal of Polymer Science, 2019, 37(10): 959-965. DOI: 10.1007/s10118-019-2227-y.
Liao, H.; Gao, J.; Zhong, L.; Gao, H. Y.; Wu, Q. Regioselective polymerizations of α-olefins with an α-diamine nickel catalyst. Chinese J. Polym. Sci. 2019, 37, 959–965. DOI： 10.1007/s10118-019-2227-y.

Heng Liao, Jie Gao, Liu Zhong, et al. Regioselective Polymerizations of α-Olefins with an α-Diamine Nickel Catalyst[J]. Chinese Journal of Polymer Science, 2019, 37(10): 959-965. DOI: 10.1007/s10118-019-2227-y. DOI：

摘要

Abstract

Polymerizations of linear

-olefins (C

＝CH―R

R = C

−2

) catalyzed by early transition metals typically afford amorphous polymers with alkyl chains (C

−2

)

while chain-straightening polymerizations of

-olefins with nickel-based catalysts produce semicrystalline polyolefins. Polymerizations of various

-olefins were carried out using an

-diamine nickel catalyst with a significantly distorted chelating ring. The influences of temperature

monomer concentration

and chain length of

-olefins on polyolefin microstructure were examined in detail. The

-diamine nickel catalyst realized highly regioselective 2

1-insertion of

-olefins regardless of reaction temperature and monomer concentration. Increased chain length of

-olefins led to the formation of more linear polyolefin. Semicrystalline polyolefins with high melting temperatures (

) were made from

-olefins through highly regioselective 2

1-insertion and precise chain-straightening.

关键词

Keywords

references

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DOI：10.1007/s10118-019-2227-y

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