光交联壳聚糖/聚乙烯醇共混膜的制备与性能

Preparation and Properties of Photocrosslinked Chitosan/PVA Blend Films

将壳聚糖与感光性物质混合制成感光性壳聚糖 ,再与聚乙烯醇按一定比例共混、成膜并进行光交联 ,制备了系列壳聚糖 (CTS) /聚乙烯醇 (PVA )光交联共混膜 ,并对共混膜的结构和性能进行比较 .结果表明 :重氮树脂系列CTS/PVA光交联共混膜性能优于CTS/PVA共混膜 ,且重氮树脂系列CTS/PVA光交联共混膜有其独特的表面形貌 .孔结构的大小及形态与共混膜中CTS/PVA的比例。

This article mainly deals with a kind of novel photosensitive chitosan made from the mixture of photosensitive compounds and chitosan. Several series of photocrosslinked chitosan/poly vinyl alcohol (CTS/PVA) blend films were prepared and their structures were characterized. Mechanical experimental data indicated that the photocrosslinked films with diaozresin had exhibited better mechanical properties than the CTS/PVA blended films. Moreover, a kind of interesting surficial structure on the photocrosslinked CTS/PVA blend films with diazoresin was discovered. The pore size and morphology varied with the blend ratio and the content of diazoresin.