采用半互穿聚合物网络(SIPN)方法制备了聚乙烯醇/聚丙烯酸(PVA/PAA)耐水膜.通过红外光谱(FT-IR)、透射电镜(TEM)证明了PVA与PAA之间具有良好的相容性.系统地研究了不同PVA/AA组成和交联剂用量下SIPN膜的亲水、耐水性能.实验结果表明,SIPN膜的水接触角在23°~33°间;SIPN膜的溶解率和溶胀度均比PVA膜、PAA膜有较大下降,对于PVA与AA的质量比为70:30、N,N′-亚甲基双丙烯酰胺(MBA)的摩尔分数为0.7%时合成的SIPN膜,在25℃~55℃下具有良好的耐水性.
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