作者:Yukishige Kondo、Eiichiro Yokochi、Sanae Mizumura、Norio Yoshino
DOI:10.1016/s0022-1139(98)00229-2
日期:1998.9
surfactants with oxyethylene groups, sodium bis[2-2-(perfluoroalkyl)ethoxy}ethyl] 2-sulfosuccinate CnF2n+1-CH2CH2OCH2CH2OCOCH2CH(SO 3Na)COOCH2CH2OCH2CH2CnF2n+1 (nFEOS; n = 4, 6, or 8), were prepared from ethylene carbonate, maleic anhydride, corresponding alcohols having a polyfluoroalkyl chain, and sodium hydrogensulfite. The surfactants were highly water-soluble, and their Krafft points (Kp) were below
三种具有氧化乙烯基的阴离子碳氟表面活性剂,双[2- 2-(全氟烷基)乙氧基}乙基] 2-磺基琥珀酸钠C n F 2 n +1 -CH 2 CH 2 OCH 2 CH 2 OCOCH 2 CH(SO 3 Na) COOCH 2 CH 2 OCH 2 CH 2 C n F 2 n +1(n FEOS; n由碳酸亚乙酯,马来酸酐,具有多氟烷基链的相应醇和亚硫酸氢钠制得=(4、6,或8)。表面活性剂是高度水溶性的,并且它们的Krafft点(K p)低于0℃。n FEOS的K p值低于常规碳氟化合物表面活性剂双[2-(全氟烷基)乙基] 2-磺基琥珀酸钠C n F 2 n +1 CH 2 CH 2 OCOCH 2 CH(SO 3 Na)COOCH 2 CH 2 C n F 2 n +1(n FS;n = 4、6或8)。在CMC中的表面张力(γ CMC的)ñ FEOS显示非常低的值,和4FEOS和6F