Ethylene polymerization using immobilized fluorine-containing bis-salicylidenimine-titanium complexes

Gagieva SC, Tuskaev VA, Takazova RU, Buyanovskaya AG, Smirnova OV, Bravaya NM, Bulychev BM (2019)

Publication Type: Journal article

Publication year: 2019

Journal

Russian Chemical Bulletin Springer Verlag (Germany)

Book Volume: 68

Pages Range: 2114-2118

Journal Issue: 11

DOI: 10.1007/s11172-019-2675-0

Abstract

A fluorine-containing bis-salicylidenimine-titanium(iv) complex TiCl2{η²-1-[C(H)=NC6F4]-2-O-Ph(Bu^t)2}2 has been synthesized and immobilized on silica gel, polysorb, and magnesium chloride. The catalytic properties of heterogenized complexes activated by organoaluminum compounds (OAC) have been studied in ethylene polymerization. it has been demonstrated that the activity of the catalytic systems obtained by simultaneous immobilization of the complex, OAC, and [Me2NHPh]⁺[B(C6F5)4]⁻ is an order of magnitude higher than in the absence of perfluorophenylborate. Catalysts on inorganic supports exhibit higher activity than catalysts on polymer supports. The use of anhydrous magnesium chloride as a support makes it possible to obtain a highly efficient catalyst for the synthesis of ultrahigh molecular weight polyethylene (activity up to 1350 (kg of polymer) (mol Ti h atm)⁻¹, melting point 140–143 °C).

Involved external institutions

Lomonosov Moscow State University / Московский государственный университет имени М.В.Ломоносова

Russian Federation (RU) A.N.Nesmeyanov Institute of Organoelement Compounds (INEOS RAS) / Институт элементоорганических соединений Российской Академии Наук им. А.Н. Несмеянова (ИНЭОС РАН)

Russian Federation (RU) Institute of Problems of Chemical Physics (IPCP) / Институт проблем химической физики (РАН)

Russian Federation (RU)

How to cite

APA:

Gagieva, S.C., Tuskaev, V.A., Takazova, R.U., Buyanovskaya, A.G., Smirnova, O.V., Bravaya, N.M., & Bulychev, B.M. (2019). Ethylene polymerization using immobilized fluorine-containing bis-salicylidenimine-titanium complexes. Russian Chemical Bulletin, 68(11), 2114-2118. https://dx.doi.org/10.1007/s11172-019-2675-0

MLA:

Gagieva, S. Ch, et al. "Ethylene polymerization using immobilized fluorine-containing bis-salicylidenimine-titanium complexes." Russian Chemical Bulletin 68.11 (2019): 2114-2118.

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