摘要
S-十二烷基-S-′(2-羧基-异丙基)三硫羧酸酯与叠氮乙醇反应合成了一种新型叠氮链转移剂(2);在2存在下通过可逆加成-断裂链转移(RAFT)自由基聚合合成了含叠氮端基的聚N-异丙基丙烯酰胺(3)。其结构经1H NMR,IR和GPC表征。研究结果表明,3呈现较好的温敏性,低临界溶液温度为28.5℃。
A novel azido-terminated chain transfer agent （2） was prepared by the reaction of S-dodecyl-S＇- （2-carbosyl-isopropyl） trithiocarbonate with azido-ethanol. By reversible addition-fragmentation chain transfer（RAFF） free radical polymerization, an azido-capped poly （isopropylacrylamide） （3） was synthesized in the presence of 2. The structures were characterized by 1H NMR, IR and GPC. The result showed that 3 exhibited clear thermosensitivity, and its lower critical solution temperature was 28.5 ℃.
出处
《合成化学》
CAS
CSCD
北大核心
2009年第5期577-579,582,共4页
Chinese Journal of Synthetic Chemistry
基金
四川省青年基金资助项目(07ZQ026-122)
四川省应用基础研究资助项目(2008JY0002)
关键词
叠氮链转移剂
可逆加成-断裂链转移
自由基聚合
聚N-异丙基丙烯酰胺
温敏性
azido-capped chain transfer agent
reversible addition-fragmentation chain transfer
free radical polymerization
poly（isopropylacrylamide）
thermosensitivity
