The microphase separation featuies of poly-(urethane-imide)-, polyurethane ( PU ) , and poly-(urethane-urea)-(PU-U) were investigated by using DSC and DMA (Dynamic Mechanical Analysis) .

• 本文以差热分析(DSC)、动态力学分析(DMA)研究了聚氨酯-酰亚胺(PUI)、聚氨(?) (PU)、聚(氨酯-脲)(PU-U)材料的微相分离特征。