Efficient Synthesis of Cyclic Olefin Copolymers with High Glass Transition Temperatures by Ethylene Copolymerization with Tetracyclododecene Using (tert-BuC5H4)TiCl2(N5=CtBu2)-MAO Catalyst

被引：9

作者：

Apisuk, Wannida ^{[1
]}

Ito, Hikaru ^{[1
]}

Nomura, Kotohiro ^{[1
]}

机构：

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

来源：

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY | 2016年 / 54卷 / 17期

基金：

日本学术振兴会;

关键词：

copolymerization; cyclic olefin copolymer; ethylene; tetracyclododecene; half-titanocene; ETHENE-NORBORNENE COPOLYMERIZATION; HALF-SANDWICH CATALYSTS; ANSA-FLUORENYLAMIDODIMETHYLTITANIUM COMPLEX; ANCILLARY DONOR LIGANDS; C-13; NMR-SPECTRA; TITANIUM COMPLEXES; POLYMER STRUCTURE; ETHYLENE/NORBORNENE COPOLYMERIZATION; IMIDAZOLIN-2-IMINATO LIGANDS; HOMOGENEOUS METALLOCENE;

D O I：

10.1002/pola.28144

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

((BuC5H4)-Bu-t)TiCl2((N5CBu2)-Bu-t) (1) exhibited remarkable catalytic activities (12,000-43,700 kg-polymer/mol-Ti.h) and efficient comonomer incorporation in ethylene copolymerization with tetracyclododecene (TCD) in the presence of methylaluminoxane, and the catalytic activity by 1 increased even at 60 degrees C. The resultant polymers are high molecular weight amorphous poly(ethylene-co-TCD)s (M-n=5.88-7.03 x 10(5)) with uniform compositions (with high T-g values, 108-203 degrees C); a linear relationship between T-g values and the TCD contents was observed. (C) 2016 Wiley Periodicals, Inc.

引用

页码：2662 / 2667

页数：6