以N,N'-亚甲基双丙烯酰胺为交联剂,过硫酸铵为引发剂采用新型两步水溶液聚合法合成出聚丙烯酸盐/聚乙二醇互穿网络(PAA/PEG IPN)水凝胶.对其溶胀性能进行了研究,结果表明,该水凝胶具有正温度敏感性,其LCST为25℃.基于聚丙烯酸盐与金属阳离子的络合作用,将该水凝胶用于重金属离子的回收.采用SEM、FTIR对其结构及表面形貌进行表征.
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