摘要
介绍了聚乙烯醇（ＰＶＡ）与马来酸（ＭＡ）酯化交联膜的制备及性能表征。ＰＶＡ与ＭＡ在浓硫酸催化下，高温脱水酯化交联。利用红外光谱（ＩＲ）、拉伸强度分别表征了交联膜的化学结构及力学性能。在沸水中测定了ＰＶＡ交联膜的耐水性，将ＰＶＡ与聚丙烯腈（ＰＡＮ）制成ＰＶＡ－ＰＡＮ交联复合膜用于渗透汽化法分离乙醇—水混合物。研究了交联度与复合膜渗透汽化特性之间的关系。
The preparation and characterization of PVA MA membranes by crosslink esterification are described.PVA MA membranes were prepared by PVA crosslink esterified with MA at concertrated H 2SO 4 and high temperature.The chemical structure of PVA MA membranes were characterized by IR spectrometry and mechanical property of PVA MA membranes were tested by stress strain test.The water durability of PVA crosslink membranes were tested in boiling water.The PVA PAN composite membranes were used for separation of water ethanol by pervaporation.The water durability and pervaporation were also studied.
出处
《山东建材学院学报》
1998年第3期211-213,216,共4页
Journal of Shandong Institute of Building Materials
基金
"九五"国家科技攻关资助项目
关键词
聚乙烯醇
马来酸
酯化交联
力学性能
交联膜
poly(vinyl alchohol)
maleic acid
crosslink esterifacation
mechanical property
water durability
separation coefficient
permeance flux
