电子束引发双功能基阳离子交换膜的制备  

STUDY ON THE PREPARATION OF BIFUNCTIONAL CATION-EXCHANGE MEMBRANES INDUCED BY ELECTRON BEAM RADIATION METHOD

作　　者：俎建华[1] 吴明红[1] 张剑秋[1] 刘兆民[1] 王燕[2] 

机构地区：[1]上海大学射线应用研究所,上海201800 [2]上海大学理学院,上海200436

出　　处：《高分子材料科学与工程》2006年第1期218-221,共4页Polymer Materials Science & Engineering

基　　金：国家自然科学基金(50303009);上海教委青年基金(03AQ96)资助项目

摘　　要：利用电子束引发预辐射接枝技术,在高密度聚乙烯(HDPE)上接枝丙烯酸(AA)和对苯乙烯磺酸钠(SSS),制备一种含羧酸基团和磺酸基团的双功能基阳离子交换膜,详细研究了反应温度、单体总浓度、pH值变化及溶剂类型对接枝率的影响规律,明确了实验条件与接枝率的对应关系。接枝膜的吸水性随接枝率的增加而增强。X射线衍射测试表明,接枝膜结晶度随接枝率的升高而降低。A study was made on the preparation of the cation-exchange membranes including sulfonate and carboxylic acid groups by pre-irradiation grafting of acrylic acid （AA） and sodium styrene sulfonate （SSS） onto high-density polyethylene （HDPE）. The grafting yield was found to be strongly dependent on the synthesis conditions such as monomers total concentration, pH, grafting temperature and type of solvent. An easy control over the grafting yield could be achieved by proper selection of reaction conditions. Water absorbance of grafted membranes increases with the increasing of grafting yield. X-ray test found that the grafted membranes show a decrease in crystallinity depending on the grafting yield.

关 键 词：高密度聚乙烯 丙烯酸 对苯乙烯磺酸钠 预辐射接枝 X射线衍射 

分 类 号：TQ425.236[化学工程]