|
ИСТИНА |
Войти в систему Регистрация |
ИПМех РАН |
||
The influence of heteroatom on catalytic properties of heterobimetallic Ti(IV)–Ca and Ti(IV)–Ba complexes in the production of UHMWPEстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 28 февраля 2020 г.
- Авторы: Gagieva Svetlana Ch, Tuskaev Vladislav A., Kurmaev Dmitry A., Bogdanov Vyacheslav S., Zubkevich Sergey V., Fedyanin Ivan V., Mikhaylik Elena S., Golubev Evgenii K., Magomedov Kasim F., Buzin Mikhail I., Bulychev Boris M.
- Журнал: Journal of Organometallic Chemistry
- Том: 909
- Год издания: 2020
- Издательство: Elsevier BV
- Местоположение издательства: Netherlands
- Первая страница: 121112
- DOI: 10.1016/j.jorganchem.2020.121112
- Аннотация: New heterobimetallic Ti(IV)-Ca and Ti(IV)-Ba complexes stabilized with fluorinated ligand – 2-[bis-CF3-hydroxymethyl]-4,6-tert-butylphenol have been synthesized; their compositions and structures have been confirmed by NMR, IR-spectroscopy and elemental analysis. The solid-state structures of complexes 1-2 were established by X-ray analysis. These complexes catalyze ethylene polymerization in the presence of a binary cocatalyst {3Et2AlCl + Bu2Mg}. In the result of this reaction Ultra High Molecular Weight Polyethylene (UHMWPE) with a broad molecular weight distribution is obtained. UHMWPE samples were processed into high-strength (up to 2.4 GPa) and high-modulus (over 130 GPa) oriented film tapes by a solid-state uniaxial deformation. Such parameters of UHMWPE samples indirectly indicate a low degree of entanglements between the macromolecular chains. The effect of the pre-catalysts composition on the catalytic activity and properties of the obtained polymer has been investigated.
- Добавил в систему: Гагиева Светлана Черменовна
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|