Novel titanium (IV) complexes with 1,2-diolate ligands: Synthesis, structure and catalytic activities in ultra-high molecular weight polyethylene production

A series of titanium (IV) complexes 3a-f stabilized by 1,2-diolate ligands 2 a-e have been synthesized. Structures of complexes 3d and 3e have been determined by X-ray diffraction. Titanium atoms in these complexes have a distorted square-pyramidal environment. All resulting complexes are highly active in ethylene polymerization in the presence of {3Et2AlCl + MgBu2} or {1.5Et3Al2Cl3 + MgBu2} binary co-catalysts. In the latter case, higher molecular weights of UHMWPE samples (up to 7.7 106) are achieved. Obtained polymers are suitable for the modern processing methods – the solvent-free solid state formation of super high-strength (over 2.0 – 2.8 GPa) and high-modulus (up to 145 GPa) oriented film tapes. © 2018

Авторы
Tuskaev V.A.1, 2 , Gagieva S.C.1, 2 , Kurmaev D.A.1 , Khrustalev V.N. 3, 4 , Dorovatovskii P.V. 5 , Mikhaylik E.S.2, 5 , Golubev E.K.2, 5 , Buzin M.I.2 , Zubkevich S.V.1 , Nikiforova G.G.2 , Vasil'ev V.G. 2 , Bulychev B.M.1 , Magomedov K.F.1
Язык
Английский
Страницы
85-91
Статус
Опубликовано
Том
877
Год
2018
Организации
  • 1 Department of Chemistry, M. V. Lomonosov Moscow State University,1 Leninskie Gory, Moscow, 119992, Russian Federation
  • 2 A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 ul. Vavilova, Moscow, 119991, Russian Federation
  • 3 Inorganic Chemistry Department, Peoples' Friendship University of Russia, Miklukho-Maklay St, 6, Moscow, 117198, Russian Federation
  • 4 National Research Center “Kurchatov Institute”, Moscow, Russian Federation
  • 5 Enikolopov Institute of Synthetic Polymer Materials, Russian Academy of Sciences, Profsoyuznaya Str., 70, Moscow, 117393, Russian Federation
Ключевые слова
OO-Ligands; Titanium; UHMWPE; Ziegler-natta polymerization
Дата создания
04.02.2019
Дата изменения
04.02.2019
Постоянная ссылка
https://repository.rudn.ru/ru/records/article/record/36177/