Polymerization of Ethylene in the Presence of Bis(phenoxyimine) Complexes of Titanium Chloride That Contain Various Substituents in a Phenoxy Group Full article
Journal |
Polymer Science Series B
ISSN: 1560-0904 , E-ISSN: 1531-8583 |
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Output data | Year: 2010, Volume: 52, Number: 7-8, Pages: 443-449 Pages count : 7 DOI: 10.1134/S1560090410070080 | ||||
Tags | Polymer Science Series; Para Position; Ethylene Polymerization; Molecular Mass Distribution; Electron Donor Substituent | ||||
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Abstract:
The kinetic features of ethylene polymerization with six methylaluminoxane-activated bis(phenoxyimine) complexes of titanium chloride that are distinguished by the electronic properties of substituents in the phenoxy group are studied in the temperature range 30–80°C and at an ethylene pressure of 0.3 MPa. It is shown that, in the presence of an electro-donor or electron-acceptor substituent in the phenoxy group, the catalytic systems under study exhibit high activity (up to ∼700 tPE mol cat −1 mol ethylene −1 h−1) and form high-molecular-mass PE samples (M η = (500–900) × 103) with different molecular-mass distributions. In the case of titanium bis(phenoxyimine) complexes containing donor substituents at the para position of the phenoxy group, the polymerization of ethylene follows the living-chain mechanism, while the introduction of acceptor substituents diminishes the contribution of this mechanism to the reaction.
Cite:
Vasilʹeva M.Y.
, Fedorov S.P.
, Nikolaev D.A.
, Oleinik I.I.
, Ivanchev S.S.
Polymerization of Ethylene in the Presence of Bis(phenoxyimine) Complexes of Titanium Chloride That Contain Various Substituents in a Phenoxy Group
Polymer Science Series B. 2010. V.52. N7-8. P.443-449. DOI: 10.1134/S1560090410070080 WOS Scopus РИНЦ
Polymerization of Ethylene in the Presence of Bis(phenoxyimine) Complexes of Titanium Chloride That Contain Various Substituents in a Phenoxy Group
Polymer Science Series B. 2010. V.52. N7-8. P.443-449. DOI: 10.1134/S1560090410070080 WOS Scopus РИНЦ
ArticleLinkType.TRANSLATED_TO_ORIGINAL:
Васильева М.Ю.
, Федоров С.П.
, Николаев Д.А.
, Олейник И.И.
, Иванчев С.С.
Особенности полимеризации этилена в присутствии бис-феноксииминных комплексов хлорида титана, содержащих различные заместители в фенокси-группе
Высокомолекулярные соединения. Серия Б. 2010. Т.52. №8. С.1483-1490. РИНЦ
Особенности полимеризации этилена в присутствии бис-феноксииминных комплексов хлорида титана, содержащих различные заместители в фенокси-группе
Высокомолекулярные соединения. Серия Б. 2010. Т.52. №8. С.1483-1490. РИНЦ
Dates:
Submitted: | Nov 13, 2009 |
Published print: | Aug 1, 2010 |
Published online: | Sep 3, 2010 |
Identifiers:
Web of science | WOS:000281608900008 |
Scopus | 2-s2.0-78649562349 |
Elibrary | 16868301 |
OpenAlex | W2077889024 |