TiIV complexes with an OSSO-type diol ligand in the catalysis of olefin polymerization

被引：2

作者：

Tuskaev, V. A. ^{[1
,2
]}

Gagieva, S. Ch. ^{[1
]}

Evseeva, M. D. ^{[1
]}

Kurmaev, D. A. ^{[1
]}

Primakov, P. V. ^{[2
]}

Golubev, E. K. ^{[3
]}

Buzin, M. I. ^{[2
]}

Bogdanov, V. S. ^{[2
]}

Magomedov, K. F. ^{[1
]}

Bulychev, B. M. ^{[1
]}

机构：

[1] Lomonosov Moscow State Univ, Dept Chem, Build 3,1 Leninskie Gory, Moscow 119991, Russia

[2] Russian Acad Sci, AN Nesmeyanov Inst Organoelement Cpds, 28 ul Vavilova, Moscow 119991, Russia

[3] Russian Acad Sci, NS Enikolopov Inst Synthet Polymer Mat, 70 ul Profsoyuznaya, Moscow 117393, Russia

来源：

RUSSIAN CHEMICAL BULLETIN | 2023年 / 72卷 / 04期

基金：

俄罗斯科学基金会;

关键词：

titanium; alkoxides; OSSO ligands; polymerization; UHMWPE; polyolefin elastomers; METAL-COMPLEXES; POLYETHYLENE;

D O I：

10.1007/s11172-023-3876-4

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The OSSO-type diol ligand and the Ti-IV dichloride and bis-isopropoxide complexes with this ligand were synthesized. The structure of the latter complex was determined by single-crystal X-ray diffraction analysis. The catalytic activity of the systems based on the complexes (OSSO)TiCl2 and (OSSO)Ti(OPri)(2), which were activated with mixtures of alkylaluminum chlorides (Et2AlCl, Et3Al2Cl3) and dibutylmagnesium, was studied in the polymerization of ethylene and its copolymerization with propylene. It was found that the homopolymerization affords ultra-high-molecular-weight polyethylene (UHMWPE) with a molecular weight up to 10.6 center dot 10(6), and the copolymerization gives copolymers containing up to 43 mol.% propylene units.

引用

页码：1093 / 1098

页数：6

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