Copolymerization of Ethylene with Alpha-Olefins over Supported Titanium–Magnesium Catalysts Containing Titanium Compounds in Different Oxidation and Coordination States

Copolymerization of Ethylene with Alpha-Olefins over Supported Titanium–Magnesium Catalysts Containing Titanium Compounds in Different Oxidation and Coordination States Научная публикация

Журнал

Applied Sciences
ISSN: 2076-3417

Вых. Данные

Год: 2023, Том: 13, Номер: 8, Номер статьи : 5030, Страниц : 11 DOI: 10.3390/app13085030

Авторы

Mikenas Tatiana B. ¹ , Zakharov Vladimir A. ¹ , Guan Peng ² , Matsko Mikhail A. ¹

Организации

1	Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, Prospect Akademika Lavrentieva 5, 630090 Novosibirsk, Russia
2	Chemistry Department, Novosibirsk National Research University, Pirogova str. 2, 630090 Novosibirsk, Russia

Data were obtained on the copolymerization of ethylene with α-olefins over supported titanium–magnesium catalysts (TMC) prepared on the same magnesium dichloride support but differing in the composition and oxidation state of titanium. The copolymerization kinetics of ethylene with 1-hexene over TMC of different compositions were studied. Data on the composition of the produced ethylene–1-hexene copolymers, their molecular weight distribution, thermophysical characteristics, and branching distribution were presented. The constants of ethylene–1-hexene copolymerization over catalysts with different compositions were calculated. The TMC containing only Ti(II) compounds as the active component exhibited increased copolymerizing ability compared to the conventional TiCl4/MgCl2 catalyst containing Ti(III) compounds as the active component. In addition, TMC with Ti(II) as an active component produces copolymers with a more uniform branching distribution. It was shown that the TMC containing isolated Ti(II) ions could be used to produce X-ray amorphous ethylene-propylene elastomers with a high yield.

Mikenas T.B. , Zakharov V.A. , Guan P. , Matsko M.A.
Copolymerization of Ethylene with Alpha-Olefins over Supported Titanium–Magnesium Catalysts Containing Titanium Compounds in Different Oxidation and Coordination States
Applied Sciences. 2023. V.13. N8. 5030 :1-11. DOI: 10.3390/app13085030 WOS Scopus РИНЦ CAPlus OpenAlex Sciact

Поступила в редакцию:	15 мар. 2023 г.
Опубликована в печати:	1 апр. 2023 г.
Принята к публикации:	13 апр. 2023 г.
Опубликована online:	17 апр. 2023 г.

Web of science:	WOS:000979124200001
Scopus:	2-s2.0-85156157839
РИНЦ:	54924418
Chemical Abstracts:	2023:879444
OpenAlex:	W4366285230
Sciact:	47408

БД	Цитирований
OpenAlex	3