Half-titanocenes for precise olefin polymerisation: effects of ligand substituents and some mechanistic aspects

被引：110

作者：

Nomura, Kotohiro ^{[1
]}

Liu, Jingyu ^{[2
]}

机构：

[1] Tokyo Metropolitan Univ, Dept Chem, Tokyo 1920397, Japan

[2] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China

来源：

DALTON TRANSACTIONS | 2011年 / 40卷 / 30期

基金：

日本学术振兴会;

关键词：

SYNDIOSPECIFIC STYRENE POLYMERIZATION; ANCILLARY DONOR LIGANDS; ETHYLENE POLYMERIZATION; (CYCLOPENTADIENYL)(ARYLOXY)TITANIUM(IV) COMPLEXES; STRUCTURAL-ANALYSIS; KETIMIDE COMPLEXES; CYCLOPENTADIENYL FRAGMENT; 1-HEXENE POLYMERIZATION; CATALYST SYSTEMS; ETHYLENE/NORBORNENE COPOLYMERIZATION;

D O I：

10.1039/c1dt10086f

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Selected examples concerning effects of both cyclopentadienyl fragment (Cp') and anionic donor ligand (Y) in nonbridged modified half-titanocenes of the type, Cp'TiX2(Y) (X = halogen, alkyl), as new type of olefin polymerisation catalysts have been reviewed. These complexes displayed unique characteristics not only for ethylene (co) polymerisation but also for syndiospecific styrene polymerisation, ethylene/styrene copolymerisation; precise fine tuning of the ligand substituents plays an important role for the successful (co) polymerisation; a different mechanistic consideration for the syndiospecific styrene polymerisation, which can explain the copolymerisation behaviour in this catalysis, has also been introduced.

引用

页码：7666 / 7682

页数：17

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