新型聚二甲基硅氧烷聚脲聚氨酯磺酸型离聚体的合成及性能（Ⅰ）

Sythesis and structure of novel sulphonated polydimethylsiloxane polyurea urethane ionomers

摘要: 采用氨丙基封端的聚二甲基硅氧烷,与4,4’-二异氰酸酯二苯甲烷反应,以1,2-二羟基丙磺酸钠为扩链剂合成了一系列结构规整,软段分子量不同的新型聚二甲基硅氧烷聚脲聚氨酯离聚体,并进一步利用阳离子交换树脂将磺酸钠转换为其它金属盐。采用示差扫描量热计,付里叶变换红外光谱,动态力学谱,光电子能谱仪,热失重分仪及应力应变测试仪研究了其形态结构和性能。

Abstract: A series of novel polydimethylsiloxane polyurea urethanes based on 4, 4'-diphenylmethanediisocyanate (MDI), sodium-s-1, 2-dihydroxypropl sulphonate (SDPS) and aminopropyl-terminated polydimethylsioxane (ATPS) were synthesized with varying length of the so