用 4 ,4′-双叠氮 -2 ,2′-二磺酸钠 ( DAS)和戊二醛对聚乙烯吡咯烷酮 ( PVP)和聚乙烯醇 ( PVA)依次进行光化学交联和化学交联 ,制备了具有互穿网络结构的渗透蒸发膜 .研究了它们用于醇、酮和醚等有机溶剂脱水的渗透蒸发性质 .结果表明 ,对于大多数有机溶剂 ,随着共混膜中 PVP含量的增加 ,膜的渗透性明显提高 ,而膜的选择性有所下降 .但用于 THF脱水时 ,膜的选择性和渗透性均随着 PVP含量的增加而增加 .交联使膜的力学性能得到改善 Polyvinylpyrrolidone (PVP) and polyvinyl alcohol (PVA) were sequentially photochemically and chemically crosslinked with 4,4’-bisazidocarboxy-2,2’-disulfonate (DAS) and glutaraldehyde , Pervaporation membranes with interpenetrating network structure were prepared.The pervaporation properties of them for the dehydration of organic solvents such as alcohols, ketones and ethers were studied.The results showed that for most organic solvents, with the PVP content , The permeability of membrane increased obviously, but the selectivity of membrane decreased, but the selectivity and permeability of membrane increased with the increase of PVP content in THF dehydration.The mechanical properties of crosslinked membrane were obtained improve