Peculiarities of Ethylene Polymerization Reactions with Bis(imino)pyridyl Complexes of CoCl<sub>2</sub> and FeCl<sub>2</sub>

Laura A. Rishina; Yury V. Kissin; Svetlana S. Lalayan; Artem A. Antonov; Vadim G. Krasheninnikov; Alexander A. Gulin

doi:10.1007/s10118-024-3064-1

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Peculiarities of Ethylene Polymerization Reactions with Bis(imino)pyridyl Complexes of CoCl₂ and FeCl₂

RESEARCH ARTICLE | Updated：2024-03-14

- Peculiarities of Ethylene Polymerization Reactions with Bis(imino)pyridyl Complexes of CoCl₂ and FeCl₂
- Chinese Journal of Polymer Science Vol. 42, Issue 4, Pages: 492-500(2024)
- Affiliations：
  
  a.N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, 4 Kosygin St., Moscow 119991, Russia
  b.Rutgers, The State University of New Jersey, Department of Chemistry and Chemical Biology, 123 Bevier Rd., Piscataway NJ 08854, USA
  c.Boreskov Institute of Catalysis, Russian Academy of Sciences, 5 Lavrentieva Prosp., Novosibirsk 630090, Russia
- Author bio：
  
  rishina@polymer.chph.ras.ru (L.A.R.)
  ykissin@scarletmail.rutgers.edu (Y.V.K.)
- Funds：
- DOI：10.1007/s10118-024-3064-1
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Rishina, L. A.; Kissin, Y. V.; Lalayan, S. S.; Antonov, A. A.; Krasheninnikov, V. G.; Gulin, A. A. Peculiarities of ethylene polymerization reactions with bis(imino)pyridyl complexes of CoCl₂ and FeCl₂. Chinese J. Polym. Sci. 2024, 42, 492–500

Laura A. Rishina, Yury V. Kissin, Svetlana S. Lalayan, et al. Peculiarities of Ethylene Polymerization Reactions with Bis(imino)pyridyl Complexes of CoCl₂ and FeCl₂. [J]. Chinese Journal of Polymer Science 42(4):492-500(2024)
Rishina, L. A.; Kissin, Y. V.; Lalayan, S. S.; Antonov, A. A.; Krasheninnikov, V. G.; Gulin, A. A. Peculiarities of ethylene polymerization reactions with bis(imino)pyridyl complexes of CoCl₂ and FeCl₂. Chinese J. Polym. Sci. 2024, 42, 492–500 DOI： 10.1007/s10118-024-3064-1.

Laura A. Rishina, Yury V. Kissin, Svetlana S. Lalayan, et al. Peculiarities of Ethylene Polymerization Reactions with Bis(imino)pyridyl Complexes of CoCl₂ and FeCl₂. [J]. Chinese Journal of Polymer Science 42(4):492-500(2024) DOI： 10.1007/s10118-024-3064-1.

摘要

Melting of different components in ethylene homopolymer produced at 25 ºC with the bis(imino)pyridyl complex of CoCl

activated with a combination of Al(C2H5)2Cl and Mg(C

)

Abstract

The article describes ethylene polymerization reactions with transition metal catalysts based on complexes of CoCl

and FeCl

with an

-tridentate ligand 2

6-bis[1-(2

6-dimethylphenylimino)ethyl]pyridine. The complexes are converted into polymerization catalysts by reacting them either with polymethylalumoxane (MAO) or with a combination of Al(C

)

Cl and Mg(C

)

at an [Al]:[Mg]

ratio of ~3. Both MAO-activated complexes readily polymerize ethylene at 35 °C with the formation of linear

low molecular weight polymers with a narrow molecular weight distribution. The same complexes

when activated with the Al(C

)

Cl-Mg(C

)

combination

form multi-center catalysts and generate polyethylenes with a broad molecular weight distribution.

关键词

Keywords

Ethylene polymerizationBis(imino)pyridyl complexes of CoCl2 and FeCl2Molecular-weight distributionPolymer chain structure

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Related Institution

A N Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilova st., 28, Moscow 119991, Russian Federation

Tianjin Key Lab of Composite & Functional Materials, School of Material Science and Engineering, Tianjin University

Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1, Moscow 119991, Russian Federation

State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences

Department of Chemistry, University of Leicester, University Road

⁰

Peculiarities of Ethylene Polymerization Reactions with Bis(imino)pyridyl Complexes of CoCl2 and FeCl2

DOI：10.1007/s10118-024-3064-1

摘要

Abstract

关键词

Keywords

references

Peculiarities of Ethylene Polymerization Reactions with Bis(imino)pyridyl Complexes of CoCl₂ and FeCl₂