采用八氟戊醇、马来酸酐、1，4-丁二醇为原料，合成了一种新型的双子表面活性剂—1，4-丁二醇双琥珀酸八氟戊醇双酯磺酸钠。通过实验得到各步反应的最优工艺条件，单酯化反应：马来酸酐与八氟戊醇摩尔比为1.2：1.0，加入占马来酸酐质量1％的无水乙酸钠，反应时间为4h，反应温度为90℃；双酯化反应：八氟戊醇马来酸单酯与1，4-丁二醇的摩尔比为2.1：1.0，占八氟戊醇马来酸单酯质量1.5％的对甲苯磺酸催化剂，反应温度为160℃，反应时间为7h；磺化反应：NaHSO3与1，4-丁二醇双马来酸八氟戊醇双酯摩尔比为1.0：2.2，反应温度为100℃，反应时间为6h。对终产物的性能进行测定，表面张力为：29.6 mN·m-1，CMC为0.005 g／L。%With eight fluorine amyl alcohol,maleic anhydride and 1,4 -butanediol as raw material,a new Gemini surfactants of sodium glycol bis-octafluoropentyl sulfo succinate was synthesized. The optimal reac-tion conditions were obtained through experiments as follow,for single esterification reaction,the molar ratio of maleic anhydride to eight fluorine amyl alcohol was 1. 2:1. 0 ,with anhydrous sodium acetate accounted for 1% of the mass of maleic anhydride as catalyst,reaction temperature e was 90℃ and reaction time was 4h;for the double-esterification reaction,the molar ratio of eight fluorine amyl alcohol maleic acid monoester to 1, 4-butanediol was 2. 1:1. 0 ,with p-toluenesulfonic acid accounted for 1. 5% of the mass of octafluoropenta-nol maleic acid monoester as catalyst,reaction temperature was 160℃ and reaction time was 7h;for sulfona-tion reaction:the molar ratio of NaHSO3 to 1 ,4-butanediol bis-maleic acid octafluoropentanol diester molar ratio was 1. 0:2. 2,the reaction temperature was 100℃ and the reaction time was 6h. Determination of the fi-nal product performance,surface tension:29. 6 mN m-1 ,CMC:0. 005 g/L.
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