Effect of Activator and Outgoing Ligand Nature on the Catalytic Behavior of Bis(phenoxy-imine) Ti(IV) Complexes in the Polymerization of Ethylene and Its Copolymerization with Higher Olefins

被引：7

作者：

Gagieva, Svetlana Ch ^{[1
]}

Magomedov, Kasim F. ^{[1
]}

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

Bogdanov, Vyacheslav S. ^{[2
]}

Kurmaev, Dmitrii A. ^{[1
]}

Golubev, Evgenii K. ^{[2
,3
]}

Denisov, Gleb L. ^{[2
]}

Nikiforova, Galina G. ^{[2
]}

Evseeva, Maria D. ^{[1
]}

Saracheno, Daniele ^{[1
,2
]}

Buzin, Mikhail, I ^{[2
]}

Dzhevakov, Pavel B. ^{[1
]}

Privalov, Viktor, I ^{[4
]}

Bulychev, Boris M. ^{[1
]}

机构：

[1] Moscow MV Lomonosov State Univ, Dept Chem, 1 Leninskie Gory, Moscow 119992, Russia

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

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

[4] Russian Acad Sci, Kurnakov Inst Gen & Inorgan Chem, 31 Leninsky Prospect, Moscow 119991, Russia

来源：

POLYMERS | 2022年 / 14卷 / 20期

基金：

俄罗斯科学基金会;

关键词：

FI catalysts; titanium(IV); zirconium(IV); polymerization; copolymerization; ultra-high molecular weight polyethylene; ethylene; higher olefin copolymer; MOLECULAR-WEIGHT POLYETHYLENE; TITANIUM COMPLEXES; FI CATALYSTS; COCATALYSTS; METALLOCENE; PERFORMANCE; TAPES; ETHYLENE/1-OCTENE; REACTIVITY; ZIRCONIUM;

D O I：

10.3390/polym14204397

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A series of bis(phenoxy-imine) (FI) titanium(IV) and zirconium(IV) complexes have been synthesized. The effect of the nature of the activator (MAO, combinations EtnAlCl3-n + Bu2Mg and iBu(3)Al + [Ph3C](+)[B(C6F5)(4)](-)) on the catalytic activity and properties of the resulting polymers was studied. It was found that Ti-Fi complexes, despite the nature of the outgoing ligands (Cl or iPrO) in the presence of Al/Mg activators, effectively catalyze the polymerization of ethylene (with the formation of UHMWPE); copolymerization of ethylene with 1-octene (with the formation of ultra-high molecular weight copolymers); and the ternary copolymerization of ethylene, propylene and 5-vinyl-2-norbornene (with the formation of polyolefin elastomers). It has been shown that Zr-FI complexes are not activated by these Al/Mg compositions. The resulting UHMWPE can be processed by a solventless method into high-strength and high-modulus oriented films; however, their mechanical characteristics do not exceed those obtained using MAO.

引用

页数：19

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