基于聚(N-异丙基丙烯酰胺)(PNIPAm)的热敏性与环糊精(CD)的超分子包合性,用可逆加成-断链转移(RAFT)反应,由“先臂法”合成出了SSPNIPAm-CD星形聚合物.用FTIR、1 H-NMR、SEC/MALLS、DSC、荧光光谱与电位滴定对星形聚合物及其前驱体的结构与性能进行了表征.DSC测定表明,星形聚合物的形成与环糊精的引入均会引起其玻璃化转变温度(Tg)的升高;也使其在水溶液中的最低临界溶解温度(LCST)升高,但发生相变过程的热效应△H减小.用8-苯胺基-1-萘磺酸铵盐(ANS)作为荧光探针,研究表明星影聚合物具有超分子包合性.
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