1,2-bis(Arylimino)acenaphthyl Nickel Bromide Complexes as Catalysts of Ethylene Polymerization Научная публикация
Журнал |
Polymer Science Series A
ISSN: 0965-545X , E-ISSN: 1555-6107 |
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Вых. Данные | Год: 2002, Том: 44, Номер: 9, Страницы: 931-935 Страниц : 5 | ||||
Ключевые слова | ethylene; nickel complex; polyethylene; polymer | ||||
Авторы |
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Организации |
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Реферат:
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).
Библиографическая ссылка:
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
Оригинальная версия:
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
Даты:
Поступила в редакцию: | 24 дек. 2001 г. |
Опубликована в печати: | 1 сент. 2002 г. |
Идентификаторы БД:
Web of science | WOS:000178686300003 |
Scopus | 2-s2.0-0036753816 |
РИНЦ | 13397493 |