紫外光接枝季铵盐抗菌聚乙烯膜的制备和表征

近年来出现的高分子杀菌剂，又称表面接触消毒剂，是将杀菌基团结合在不溶性载体上．此类杀菌剂不仅可以有效的避免二次污染，而且可以重复利用．由于杀菌基团集中在载体表面且浓度高，也使得消毒时间缩短．这些优点使高分子杀菌剂成为目前研究的热点。

QUATERNARY AMMONIUM SALT (QAS) GRAFTED PE FILMS

A quaternary ammonium salt (QAS),Methacryloxylethyl benzyl dimethyl ammonium chloride, was introduced onto the surface of PE films by UV photografting technique.The photografted films were characterized by FTIR,XPS and SEM.Morphology of the grafted layers were studied and was found to change with th UV Light irradiation time.The PE film surfaces were uniformly covered with the QAS moieties and the thickness was about several μm.A clear boundary between the grafted layer and the substrate surface was also observed.