超声波合成温敏型聚合物——聚(N-异丙基丙烯酰胺)

Synthesis of Temperature-responsive Polymer{poly(N-isopropyl acrylamide)} by Ultrasonic

以N-异丙基丙烯酰胺为单体,N,N'-亚甲基双丙烯酰胺为交联剂,THF为溶剂,采用超声辐照聚合法合成了一种温敏型聚合物——聚(N-异丙基丙烯酰胺)(1),其结构经FT-IR表征。用UV-Vis研究了1的热相转变性能。结果表明,1具有温度敏感性,其最低临界共溶温度为34℃。

A temperature-sensitive polymer,poly（N-isopropyl acrylamide）（1）,was synthesized by ultrasonically initiated polymerization using N-isopropyl acrylamide as the monomer,N,N′-methylenebisacrylamide as the crosslinker and THF as the solvent.The structure was confirmed by FT-IR.The thermal phase transformation behavior of 1 were investigated by UV-Vis.The results showed that the 1 has thermosensitivity and the lower critical solution temperature is 34 ℃.