Modulation of the lower critical solution temperature of 2-Alkyl-2-oxazoline copolymers

被引:0
|
作者
Stephan Huber
Rainer Jordan
机构
[1] Technische Universität München,Wacker
来源
Colloid and Polymer Science | 2008年 / 286卷
关键词
Poly(2-oxazoline); LCST; Thermo-responsive polymer; Living cationic polymerization; Copolymer;
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中图分类号
学科分类号
摘要
Living cationic copolymerization of 2-isopropyl-2-oxazoline with 2-n-propyl-, 2-n-butyl-, and 2-n-nonyl-2-oxazoline results in gradient copolymers of defined composition, narrow molar mass distributions (PDI = 1.09–1.3), and defined overall degree of polymerization, set to n = 25 for all polymers. The introduction of monomer units of stronger amphiphilic character results in a systematic decrease of the lower critical solution temperature (LCST). The LCST modulation can be controlled by the choice of the comonomer as well as the comonomer ratio and was tuned in the temperature range from 46 to 9 °C.
引用
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页码:395 / 402
页数:7
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