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Study of the Compositional Heterogeneity of Ethylene-1-Hexene Copolymers via Thermal Fractionation with the Use of Differential Scanning Calorimetry Научная публикация

Журнал Polymer Science Series A
ISSN: 0965-545X , E-ISSN: 1555-6107
Вых. Данные Год: 2011, Том: 53, Номер: 4, Страницы: 296-302 Страниц : 7 DOI: 10.1134/S0965545X11040092
Ключевые слова Polymer Science Series; Short Chain; TIBA; Lamellar Thickness; Compositional Heterogeneity
Авторы Matsko M.A. 1 , Vanina M.P. 1 , Echevskaya L.G. 1 , Zakharov V.A. 1
Организации
1 Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, pr. Akademika Lavrent’eva 5, Novosibirsk, 630090 Russia

Реферат: The compositional heterogeneity of ethylene-1-hexene copolymers synthesized with various types of supported catalysts, namely, the titanium-magnesium catalyst TiCl4/MgCl2 and the zirconocene catalyst SiO2(MAO)/Me2Si(Ind)2ZrCl2, is studied via the method of successive self-nucleation-annealing (SSA) with the use of differential scanning calorimetry. On the basis of the data on the temperatures of individual peaks on SSA curves, the thickness of lamellas composed of macromolecules with a certain degree of short-chain branching is estimated. The copolymer synthesized with the zirconocene catalyst has a narrower range of fusion and does not contain large lamellas composed of molecules with a low degree of short-chain branching. With the use of the broadness index, it is shown that the copolymer synthesized with the zirconocene catalyst has a more uniform distribution of the comonomer than does the copolymer synthesized with the titanium-magnesium catalyst. For the copolymers synthesized with the titanium-magnesium catalyst, the compositional heterogeneity increases with an increase in the content of 1-hexene.
Библиографическая ссылка: Matsko M.A. , Vanina M.P. , Echevskaya L.G. , Zakharov V.A.
Study of the Compositional Heterogeneity of Ethylene-1-Hexene Copolymers via Thermal Fractionation with the Use of Differential Scanning Calorimetry
Polymer Science Series A. 2011. V.53. N4. P.296-302. DOI: 10.1134/S0965545X11040092 WOS Scopus РИНЦ CAPlusCA OpenAlex
Оригинальная: Мацько М.А. , Ванина М.П. , Ечевская Л.Г. , Захаров В.А.
Изучение композиционной неоднородности сополимеров этилена с гексеном-1 методом термического фракционирования с использованием дифференциальной сканирующей калориметрии
Высокомолекулярные соединения. Серия А. 2011. Т.53. №4. С.532-538. РИНЦ
Даты:
Поступила в редакцию: 27 апр. 2010 г.
Принята к публикации: 28 авг. 2010 г.
Опубликована в печати: 1 апр. 2011 г.
Опубликована online: 30 апр. 2011 г.
Идентификаторы БД:
Web of science: WOS:000291751600003
Scopus: 2-s2.0-79957969696
РИНЦ: 18057968
Chemical Abstracts: 2011:539380
Chemical Abstracts (print): 155:12402
OpenAlex: W2051040769
Цитирование в БД:
БД Цитирований
Web of science 9
Scopus 9
РИНЦ 9
OpenAlex 9
Альметрики: