1,2-bis(Arylimino)acenaphthyl Nickel Bromide Complexes as Catalysts of Ethylene Polymerization Full article
Journal |
Polymer Science Series A
ISSN: 0965-545X , E-ISSN: 1555-6107 |
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Output data | Year: 2002, Volume: 44, Number: 9, Pages: 931-935 Pages count : 5 | ||||
Tags | ethylene; nickel complex; polyethylene; polymer | ||||
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Abstract:
The kinetics of ethylene polymerization initiated by four novel methylaluminoxane-activated cc-diimine NiBr2 complexes bearing bulky cyclic substituents at the o-position of an aryl group was studied. The activity of the synthesized complexes in polymerization was determined in the temperature range from 4 to 70degreesC and an ethylene pressure of 0.3 MPa. The structure and thermal characteristics of the as-prepared polyethylene samples were estimated by FTIR spectroscopy and DSC. It was shown that, as the temperature increases, the rate of the process passes through a maximum whose position depends on the structure of the complex and temperature. Polyethylene synthesized at 0.3 MPa is characterized by the presence of short-chain branchings containing from 3.5 to 63 CH3 groups/1000 C and, accordingly, a density varying from 940 to <910 kg/m(3). The molecular mass of the tested polymers varies from similar to 1 X 10(6) to similar to 1 X 10(3).
Cite:
Ivanchev S.S.
, Tolstikov G.A.
, Badaev V.K.
, Ivancheva N.I.
, Oleiynik I.I.
, Khaikin S.Y.
, Oleinik I.V.
1,2-bis(Arylimino)acenaphthyl Nickel Bromide Complexes as Catalysts of Ethylene Polymerization
Polymer Science Series A. 2002. V.44. N9. P.931-935. WOS Scopus РИНЦ
1,2-bis(Arylimino)acenaphthyl Nickel Bromide Complexes as Catalysts of Ethylene Polymerization
Polymer Science Series A. 2002. V.44. N9. P.931-935. WOS Scopus РИНЦ
ArticleLinkType.TRANSLATED_TO_ORIGINAL:
Иванчев С.С.
, Толстиков Г.А.
, Бадаев В.К.
, Иванчева Н.И.
, Олейник И.И.
, Хайкин С.Я.
, Олейник И.В.
1,2-Бис-(арилимино)аценафтильные комплексы бромида никеля как катализаторы полимеризации этилена
Высокомолекулярные соединения. 2002. Т.44. №9. С.1478-1483. Scopus РИНЦ
1,2-Бис-(арилимино)аценафтильные комплексы бромида никеля как катализаторы полимеризации этилена
Высокомолекулярные соединения. 2002. Т.44. №9. С.1478-1483. Scopus РИНЦ
Dates:
Submitted: | Dec 24, 2001 |
Published print: | Sep 1, 2002 |
Identifiers:
Web of science | WOS:000178686300003 |
Scopus | 2-s2.0-0036753816 |
Elibrary | 13397493 |