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Study of the Molecular Structure of Ethylene-Propylene Copolymers Obtained with Catalysts of Different Composition Научная публикация

Журнал Makromolekulare Chemie up to 1993, continued as Macromolecular Chemistry and Physics
ISSN: 0025-116X
Вых. Данные Год: 1987, Том: 188, Номер: 11, Страницы: 2573-2583 Страниц : 11 DOI: 10.1002/macp.1987.021881109
Авторы Yechevskaya Lyudmila G. 1 , Bukatov Gennadii D. 1 , Zakharov Vladimir A. 1 , Nosov Andrey V. 1
Организации
1 Institute of Catalysis, Siberian Branch of the Academy of Sciences of the USSR

Реферат: The monomer composition and sequence distribution in ethylene-propylene copolymers (EPCs) obtained with supported titanium/magnesium (TMC) and vanadium/magnesium (VMC) catalysts as well as with titanium trichloride was studied by means of 13C NMR spectroscopy. Based on these data ethylene-propylene reactivity ratios were determined. The EPCs obtained on these catalysts are inhomogeneous in composition; the soluble fractions contain larger amounts of propylene. The microstructures of copolymers obtained on TMCs and TiCl3 are similar. For EPCs obtained on VMCs, propylene “head-to-head” or “tail-to-tail” inversions and a more homogeneous distribution of propylene are observed.
Библиографическая ссылка: Yechevskaya L.G. , Bukatov G.D. , Zakharov V.A. , Nosov A.V.
Study of the Molecular Structure of Ethylene-Propylene Copolymers Obtained with Catalysts of Different Composition
Makromolekulare Chemie up to 1993, continued as Macromolecular Chemistry and Physics. 1987. V.188. N11. P.2573-2583. DOI: 10.1002/macp.1987.021881109 WOS РИНЦ CAPlusCA OpenAlex
Даты:
Поступила в редакцию: 10 нояб. 1986 г.
Опубликована в печати: 1 нояб. 1987 г.
Опубликована online: 12 мар. 2003 г.
Идентификаторы БД:
Web of science: WOS:A1987L013500009
РИНЦ: 23623884
Chemical Abstracts: 1987:637642
Chemical Abstracts (print): 107:237642
OpenAlex: W1501927677
Цитирование в БД:
БД Цитирований
Web of science 17
РИНЦ 11
OpenAlex 21
Альметрики: