溶剂在嵌段共聚高分子膜中的溶解与传递现象  

Solubilities and Transport Properties of Solvents in Diblock Copolymer Membrane

作　　者：黄永民[1] Abdulaziz Mohammed Al-Hakimi 杨宇润[1] 刘洪来[1] 王得宁[1] 

机构地区：[1]华东理工大学化学系国家重点化学工程联合实验室,上海200237

出　　处：《华东理工大学学报（自然科学版）》2004年第1期69-73,共5页Journal of East China University of Science and Technology

基　　金：国家自然科学基金(20025618;20236010);上海市教委资助项目

摘　　要：利用石英弹簧称重法测定了308.15K时乙醇和苯在含端羟基聚丁二烯(HTPB)和端羟基聚丁二烯/丙烯腈共聚物(HTBN)的嵌段共聚聚氨酯膜中的吸收动力学曲线。结合吸收-络合吸附双模式传递模型,研究了聚氨酯膜的微相分离程度、软硬段的比例和组成以及软段分子量等因素对溶剂在膜中溶解和传递性质的影响。Absorption kinetic curves of ethanol and benzene in membranes of diblock co-polyurethane containing hydroxyl-poly-butadiene groups(HTPB) and hydroxyl-co-poly-butadiene-acrylonitrile groups(HTBN) at 308.15 K are measured by quartz spring weighing method. Combining transport model based on absorption-adsorption dual modes, the effect of membrane performance such as micro-phase separation of copolyurethane membrane, ratios between soft and hard segments, composition and molecular weight of soft segments on the solubility and transport property of solvent are studied.

关 键 词：嵌段共聚高分子膜 聚氨酯膜 溶解 传递性质 微相分离程度 溶剂 渗透蒸发膜分离 

分 类 号：O633.14[理学—高分子化学] TQ028.8[理学—化学]