Titanium(III, IV) - containing catalytic systems for production of  Ultra-High Molecular Weight Polyethylene Nascent Reactor Powders, suitable  for solventless processing – Impact of Oxidation States of Transition Metal

Tuskaev, V.; Gagieva, S.; Kurmaev, D.; Kolosov, N.; Mikhaylik, E.; Golubev, E.; Sizov, A.; Zubkevich, S.; Vasil’ev, V.; Nikiforova, G.; Buzin, M.; Serenko, O.; Bulychev, B.

Статья опубликована в высокорейтинговом журнале

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: 20 марта 2018 г.

Авторы: Vladislav Tuskaev, Svetlana Gagieva, Dmitrii Kurmaev, Nikolay Kolosov, Elena Mikhaylik, Evgenii Golubev, Alexander Sizov, Sergey Zubkevich, Viktor Vasil’ev, Galina Nikiforova, Mikhail Buzin, Olga Serenko, Boris Bulychev
Журнал: Polymers
Номер: 10(1)
Год издания: 2018
Издательство: MDPI
Местоположение издательства: Basel, Switzerland
Первая страница: 1
Последняя страница: 13
DOI: 10.3390/polym10010002
Аннотация: Catalytic systems containing TiCl4 or TiCl3, THF, organomagnesium (n-Bu2Mg) and organoaluminum compounds capable of producing ultrahigh molecular weight polyethylene (UHMWPE) were developed. The resulting polymers were characterized by a molecular weight in the range of (1.8–7.8) × 106 Da and desirable morphology, suitable for modern methods of polymer processing—the solvent-free solid-state processing of superhigh-strength (tensile strength up to 2.1 GPa) and high-modulus (elastic modulus up to 125 GPa) oriented films and film tapes. The impacts of a THF additive, the oxidation state of the titanium atom, and the composition and nature of the nontransition organometallic compounds on the formation of catalytic systems for UHMWPE production were evaluated. The results indicate the suitability of individual titanium chloride tetrahydrofuran complex application for the formation of THF-containing catalytic systems. This approach also results in a significant increase in the system catalytic activity and mechanical properties of UHMWPE. The catalysts based on Ti(III) were inferior to systems containing Ti(IV) in productivity but were markedly superior in the mechanical properties of UHMWPE.
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Titanium(III, IV) - containing catalytic systems for production of Ultra-High Molecular Weight Polyethylene Nascent Reactor Powders, suitable for solventless processing – Impact of Oxidation States of Transition Metalстатья

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