Living cationic sequential block copolymerization: synthesis and characterization of poly(4-(2-hydroxyethyl)styrene-b-isobutylene-b-4-(2-hydroxyethyl)styrene) triblock copolymers

被引：0
作者：
Yi-bo Wu
Ping Ren
Wenli Guo
Shu-xin Li
Xiao-ping Yang
Yu-wei Shang
机构：
[1] Beijing Institute of Petrochemical Technology,Department of Material Science and Engineering
[2] College of Mechanical and Electrical Engineering,undefined
[3] Beijing University of Chemical Technology,undefined
来源：
Polymer Journal | 2010年 / 42卷
关键词：
hydrolysis; living carbocationic polymerization; pendant hydroxyl groups; polyisobutylene;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The synthesis of well-defined poly(4-(2-(tert-butyldimethylsiloxy)ethyl)-styrene-b-isobutylene-b-4-(2-(tert-butyldimethylsiloxy)ethyl)styrene)(PTBDMES-b-PIB-b-PTBDMES) triblock copolymers was accomplished by cationic sequential block copolymerization of isobutylene (IB) and 4-(2-(tert-butyldimethylsiloxy)ethyl)styrene (TBDMES) using the capping-tuning technique in a one-pot procedure in methylcyclohexane/CH3Cl at −80 °C. Deprotection of the precursor triblock copolymer with tetrabutylammonium fluoride yielded poly(4-(2-hydroxyethyl)styrene-b-isobutylene-b-4-(2-hydroxyethyl)styrene) (PHOES-b-PIB-b-PHOES), with pendant hydroxyl groups along the hydrophilic backbone chains. FT-IR, NMR confirmed that hydrolysis was complete.[graphic not available: see fulltext]
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页码：268 / 272
页数：4
相关论文
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