Homogeneous Polymerization of Ethylene Using Two-Component Heterobimetallic Catalytic Systems with Bis(imino)pyridine and Bis(imine) Ligands Full article
Journal |
Polymer Science Series B
ISSN: 1560-0904 , E-ISSN: 1531-8583 |
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Output data | Year: 2004, Volume: 46, Number: 11-12, Pages: 328-333 Pages count : 6 | ||
Tags | Aluminum compounds; Catalyst activity; Catalysts; Complexation; Ethylene; Iron compounds; Nickel compounds; Organometallics; Reaction kinetics | ||
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Abstract:
The kinetic features of ethylene polymerization catalyzed by methylaluminoxane-activated two-component heterobimetallic catalytic systems based on 2,6-bis(imino)pyridyl iron dichloride complexes bearing substituents R in the ortho-position of an aryl ring (R1 = cyclohexyl and R 2 = R3 = Me (I); R1 = R2 = i-Pr; and R3 = H (III)) and
1,2-bis(imino)acenaphthyl complexes of nickel dibromide containing substituents in the ortho-position of the aryl ring (R 1 = cyclohexyl, R2 = R3 = Me (II); R 1 = R2 = Me, and R3 = H (IV)) were studied at various component ratios at temperatures ranging from 50 to 70°C. It was demonstrated that the above components can be used in the same reactor and that the catalytic systems employed are efficient for the synthesis of polyethylene at acceptable rates, various molecular masses, and short-chain branchings. It was shown that bis(imino)pyridine iron dichloride with an alkyl substituent in the aryl group (III) and bis(imino)acenaphthyl nickel dibromide with a cycloaliphatic substituent in the aryl group (II) are optimal components of binary catalytic systems that retain a high level of activity and branching, as well as the molecular characteristics of polyethylenes.
Cite:
Ivanchev S.S.
, Badaev V.K.
, Ivancheva N.I.
, Sviridova E.V.
, Rogozin D.G.
, Khaikin S.Y.
Homogeneous Polymerization of Ethylene Using Two-Component Heterobimetallic Catalytic Systems with Bis(imino)pyridine and Bis(imine) Ligands
Polymer Science Series B. 2004. V.46. N11-12. P.328-333. WOS Scopus РИНЦ
Homogeneous Polymerization of Ethylene Using Two-Component Heterobimetallic Catalytic Systems with Bis(imino)pyridine and Bis(imine) Ligands
Polymer Science Series B. 2004. V.46. N11-12. P.328-333. WOS Scopus РИНЦ
Original:
Иванчев С.С.
, Бадаев В.К.
, Иванчева Н.И.
, Свиридова Е.В.
, Рогозин Д.Г.
, Хайкин С.Я.
Особенности полимеризации этилена на двухкомпонентных гетеробиметаллических каталитических системах с бис(имино)пиридиновыми и бисиминными лигандами в гомогенных условиях
Высокомолекулярные соединения. Серия Б. 2004. Т.46. №11. С.1959-1964. Scopus РИНЦ
Особенности полимеризации этилена на двухкомпонентных гетеробиметаллических каталитических системах с бис(имино)пиридиновыми и бисиминными лигандами в гомогенных условиях
Высокомолекулярные соединения. Серия Б. 2004. Т.46. №11. С.1959-1964. Scopus РИНЦ
Dates:
Submitted: | Mar 18, 2004 |
Published print: | Nov 1, 2004 |
Identifiers:
Web of science | WOS:000225904300002 |
Scopus | 2-s2.0-12444334505 |
Elibrary | 13472271 |