论文部分内容阅读
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。
The absorption kinetics of ethanol and benzene in block copolyurethane films containing hydroxyl terminated polybutadiene (HTPB) and hydroxyl terminated polybutadiene / acrylonitrile copolymers (HTBN) at 308.15 K was measured by quartz spring weighing method Learn the curve. In this paper, the effects of solvent on the dissolution and transport properties of the films were investigated by the absorption-absorption bi-modal transfer model, the degree of micro-phase separation, the proportion and composition of the hard and soft segments, the soft segment molecular weight and other factors.