文献类型：期刊文献

中文题名：丙烯酸改性聚醚砜中空纤维渗透汽化膜的研究

英文题名：Study on Acrylic Acid Modified Polyethersulfone Hollow Fiber Pervaporation Membrane with Thermal Polymerization

作者：杨虎[1];许振良[1];平郑骅[2];周立志[2]

机构：[1]华东理工大学化学工程研究所,上海200237;[2]复旦大学高分子科学系

年份：2005

卷号：18

期号：1

起止页码：84

中文期刊名：功能高分子学报

外文期刊名：Journal of Functional Polymers

收录：CSTPCD;;北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

基金：教育部聚合物分子工程重点实验室基金;国家973重点基础研究发展计划资助项目(No2003CB6257005)

语种：中文

中文关键词：丙烯酸;聚醚砜中空纤维;汽化膜;改性技术;渗透汽化技术;浸涂法

外文关键词：grafting; acrylic acid; hollow fiber; pervaporation

摘要：采用自由基聚合反应制备了丙烯酸接枝改性的聚醚砜中空纤维渗透汽化膜,该膜用于醇/水分离获得了良好的效果。结果表明,通过改变聚合单体的浓度可以控制膜的接枝率,并调节膜的选择性和通量。改性膜的红外光谱和电镜分析结果表明:膜的接枝反应主要发生在中空纤维膜的内表面,膜的外表面接枝程度很低。力学性能测试表明接枝后膜的拉伸强度减弱。
Polyethersulfone (PES) hollow fibers grafted with acrylic acid for pervaporation application were prepared by free radical polymerization. They showed a good water selectivity for ethanol-water separation. The gravimetric analysis pointed that the grafting degree of hollow fiber increases with acrylic acid concentration, which further influenced the selectivity and flux of hollow fiber. IR-ATR and SEM study revealed that the grafting mainly happened on the internal surface of PES hollow fiber, the amount of the grafted acrylic acid on its external surface is relatively lower. Mechanical property measurement showed that modified hollow fibers have lower tensile strength than unmodified sample.