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采用熔融预聚二步法合成了以环氧乙烷-四氢呋喃无规共聚醚为软段,异佛尔酮二异氰酸酯和1,4-丁二醇为硬段的热塑性聚氨酯弹性体,利用DSC、DMA和TG对聚合物的热行为进行了研究.结果表明,异佛尔酮二异氰酸酯基聚醚聚氨酯弹性体具有典型的微相分离特征,随着硬段含量的增加,微相分离程度增加.

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