作　　者： ; ; ; ; ;

机构地区： 浙江工业大学化学工程与材料学院绿色化学合成技术国家重点实验室

出　　处： 《合成化学》 2010年第B09期118-124,共7页

摘　　要： 以甲苯-2,4-二异氰酸酯(2,4-TDI)、2-甲氧基-3-全氟壬烯氧基丙醇和聚乙二醇(PEG)等为主要原料,通过分布缩合得到一种非离子型含氟聚氨酯表面活性剂,并利用红外光谱对其进行了表征。讨论了加料方式、亲水单体相对分子质量、聚乙二醇用量等因素对产品性能的影响。实验结果表明,当n(2,4-TDI):n(氟醇):n(PEG)=1:1:1.1时,采用先加入TDI和氟醇,反应一段时间后滴加PEG的加料方式,能够合成得到综合性能较好的非离子型含氟聚氨酯表面活性剂。对该表面活性剂在水相中的表面活性进行了测试,所制得的非离子型含氟聚氨酯表面活性剂(FPU-1)的相对分子质量为1310,其临界胶束浓度约为9.54×10-5mol/L,水溶液的最低表面张力为20.88mN/m。 A series of nonionic fluorine-containing polyurethane surfactants were prepared from toluene diisocynate（TDI）,2-methoxy-3-perfluorinated nonenoxy propanol and polyethylene glycol.Their chemical structure was characterized by FT-IR analysis.The effects of mode of feeding of raw materials,hydrophilic monomer on the prepared polymer＇s properties and PEG were investigated.The result showed that the suitable mole ratio of TDI,2-methoxy-3-perfluorinated nonenoxy propanol and PEG can be identified as 1：1：1.1,and the sequence of the feeding of raw materials is to feed TDI and 2-methoxy-3-perfluorinated nonenoxy propanol first,and then add the PEG.Under such conditions,nonionic fluorine-containing polyurethane surfactant product with good comprehensive proformance can be obtained.Surface activity of the surfactant in aqueous solution was measured that the relative molecular weight of the FPU-1 product is 1310 and the cmc is about 9.54×10-5mol/L with the surface tension of 20.88mN/m.

关 键 词： 非离子型表面活性剂 含氟聚氨酯 甲苯 二异氰酸酯 聚乙二醇 合成 性能

领　　域： [化学工程]