苯乙烯－丁二烯－苯乙烯工嵌段共聚物／聚（苯乙烯－甲基丙烯酸盐）热塑性IPN中离子聚集结构的研究

STUDIES ON STATE OF ION AGGREGATION IN THERMOPLASTIC IPN BASED ON SBS AND STYRENE-METHACRYLATE IONOMER

苯乙烯－丁二烯－苯乙烯工嵌段共聚物／聚（苯乙烯－甲基丙烯酸盐）热塑性ＩＰＮ中离子聚集结构的研究韦雨春，袁惠根，潘祖仁（浙江大学化工系杭州３１００２７）关键词互穿聚合物网络，离子聚集，远红外光谱，Ｘ－光散射以苯乙烯－丁二烯－苯乙烯三嵌段共聚物（ＳＢＳ）...

he state of aggregation of the ionic bonds in IPN was investigated by Far-Infrared spectra and X-ray scattering. A far-infrared band, due to the vibration of a higher-order cluster, was found at 145cm-1 for IPN neutralized completely by Zn2+ salt. This band, which was observed in addition to the known cation-motion bands, was assinged to the vibrations of aggregates involving many cations and anionic sites close together. X-ray results revealed a low-angle x-ray peak corresponding to the clusters. The modified Bragg spacing was 2.39nm. It was interpreted as a result of short range ordering of multiplets around ionic clusters.