由壳聚糖和聚乙烯醇的醋酸水溶液共混,流延成膜,然后用1mol/L的NaOH水溶液处理,成功制得具有互穿网络结构的壳聚糖/聚乙烯醇二元共混膜.采用红外光谱、X射线衍射和扫描电镜对共混膜进行了结构表征,并对共混膜的透光率、吸水率、保水率、力学性能、透水汽率、热稳定性等方面进行了测试.结果表明,共混膜中壳聚糖与聚乙烯醇具有良好的相容性,其中壳聚糖与聚乙烯醇分子间的作用力使共混膜理化性能得到了显著改善.
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