Remarkable effect of organoaluminum activator on catalytic performance of bis(phenoxy-imine) titanium complexes in ethylene polymerization

A. Gleń; M. Białek; K. Czaja

Published : 2022-08-18

Vol. 54 No. 10 (2009)

Remarkable effect of organoaluminum activator on catalytic performance of bis(phenoxy-imine) titanium complexes in ethylene polymerization

A. Gleń M. Białek K. Czaja

Abstract

Three titanium complexes having phenoxy-imine chelate ligands: bis[N-(3,5-di-tert-butylsalicylidene)anilinato]titanium(IV) dichloride (complex I), bis[N-(3,5-di-tert-butylsalicylidene)-1-naphtylaminato]titanium(IV) dichloride (complex II) and bis[N-(salicylidene)-1-naphtylaminato]titanium(IV) dichloride (complex III) were synthesized and used as ethylene polymerization catalysts in conjunction with various organoaluminum compounds. It was found that both ligand structure and activator type (MAO, Et3Al, Et2AlCl, EtAlCl2) had great impacts on activity of complexes investigated. On the other hand, the type of alkylaluminum compound, much more than the structure of the complex determines the properties of products of the polymerization leading to high molecular weight polyethylene or low molecular weight polyethylene and oligomers.

Keywords

polimeryzacja etylenu ; katalizator postmetalocenowy ; ligand fenoksyiminowy ; katalizator FI ethylene polymerization ; post-metallocene catalyst ; phenoxy-imine ligand ; FI catalyst

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Gleń, A., Białek, M., & Czaja, K. (2022). Remarkable effect of organoaluminum activator on catalytic performance of bis(phenoxy-imine) titanium complexes in ethylene polymerization. Polimery, 54(10), 712-718. Retrieved from https://ichp.vot.pl/index.php/p/article/view/1249

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A. Gleń

M. Białek bialek@uni.opole.pl

Affiliation
Opole University Faculty of Chemistry ul. Oleska 48,45-052 Opole

K. Czaja