Synthesis of a novel syndiotactic poly(macromonomer) consisting of styrene-terminated polyisoprene macromonomers using half-titanocene catalysts

被引：0
|
作者：
Senoo, K [1 ]
Endo, K [1 ]
机构：
[1] Osaka City Univ, Dept Appl Chem, Fac Engn, Sumiyoshi Ku, Osaka 5588585, Japan
来源：
MACROMOLECULAR RAPID COMMUNICATIONS | 2000年 / 21卷 / 17期
关键词：
D O I：
10.1002/1521-3927(20001101)21:17<1244::AID-MARC1244>3.0.CO;2-V
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Homopolymerization of a styrene-terminated polyisoprene macromonomer (SIPM) by half-titanocene catalysts in combination with methylaluminoxane (MAO) was investigated. Polymerization of the SIPRI with CpTiCl3-MAO as the catalyst was found to proceed readily to give a high molecular weight polymer. H-1 and C-13 NMR spectra of the poly(SIPM) after ozonolysis of the isoprene side chain revealed that poly(SIPM) is a highly syndiotactic polymer. Syndiotactic poly(STPM) is soluble in usual solvents in spite of having highly syndiotactic sequences on its main chain and a considerable degree of polymerization.
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页码：1244 / 1247
页数：4
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