【摘要】 基于不同分子量的环氧乙烷－四氢呋喃共聚醚（ＰＥＴ）、异佛尔酮二异氰酸酯（ＩＰＤＩ）和扩链剂１，４－二醇（ＢＤＯ）／乙二胺（ＥＤ）等合成了一系列嵌段聚氨酯／嵌段聚氨酯脲，通过拉伸实验、差示扫描量热（ＤＳＣ）和Ｘ－ＲＡＹ衍射（ＸＲＤ）等对其结构和性质进行了研究。更多还原

【Abstract】 Several segmented polyurethanes and polyurethaneureas based on ethylene oxide- tetrahydrofuran copolyether (PET), IPDI and BDO/ED were prepared. The structure and properties of these products were characterized with tensile test, DSC and XRD techniques.更多还原