Peculiarities of Ethylene Polymerization Reactions with Bis(imino)pyridyl Complexes of CoCl2 and FeCl2 | Sciact - CRIS-system of Boreskov Institute of Catalysis

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

Journal

Chinese Journal of Polymer Science
ISSN: 0256-7679 , E-ISSN: 1439-6203

Output data

Year: 2024, Volume: 42, Pages: 492–500 Pages count : 9 DOI: 10.1007/s10118-024-3064-1

Tags

Ethylene polymerization; Bis(imino)pyridyl complexes of CoCl2 and FeCl2; Molecular-weight distribution; Polymer chain structure

Authors

Rishina Laura A. ¹ , Kissin Yury V. ² , Lalayan Svetlana S. ¹ , Antonov Artem A. ³ , Krasheninnikov Vadim G. ¹ , Gulin Alexander A. ¹

Affiliations

1	N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, 4 Kosygin St., Moscow 119991, Russia
2	Rutgers, The State University of New Jersey, Department of Chemistry and Chemical Biology, 123 Bevier Rd., Piscataway NJ 08854, USA
3	Boreskov Institute of Catalysis, Russian Academy of Sciences, 5 Lavrentieva Prosp., Novosibirsk 630090, Russia

Funding (1)

Ministry of Science and Higher Education of the Russian Federation

The article describes ethylene polymerization reactions with transition metal catalysts based on complexes of CoCl2 and FeCl2 with an N,N,N-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(C2H5)2Cl and Mg(C4H9)2 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(C2H5)2Cl-Mg(C4H9)2 combination, form multi-center catalysts and generate polyethylenes with a broad molecular weight distribution.

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 Journal of Polymer Science. 2024. V.42. P.492–500. DOI: 10.1007/s10118-024-3064-1 WOS Scopus РИНЦ AN OpenAlex

Submitted:	Sep 29, 2023
Accepted:	Oct 30, 2023
Published online:	Dec 7, 2023
Published print:	Apr 1, 2024

Web of science:	WOS:001122012000002
Scopus:	2-s2.0-85179351066
Elibrary:	63300203
Chemical Abstracts:	2023:2590743
OpenAlex:	W4389547326

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