酰胺基磺酸盐表面活性剂的合成及性能研究

Synthesis and properties of a novel sulfonate surfactant with amide

合成了N-十四烷基乙酰胺-?-磺酸钠(STAS)阴离子表面活性剂。通过红外光谱和1H-NMR对其进行了结构表征。利用电导率测定了STAS的Krafft点,为43℃。研究了STAS与OP-10混合物的溶液性质,STAS与OP-10分别以1∶1和1∶7比例复配,溶液的临界胶束浓度(CMC)分别为0.08 mmol/L和0.12 mmol/L;临界胶束浓度时的溶液表面张力几乎不变。

A new anionic surfactant, sodium N-tetradecyl acetylamine ?-sulfonate(STAS), was synthesized and characterized by IR and 1H-NMR. The Krafft point of STAS which was determined by conductivity is 43℃. The solution property of the mixed system of STAS and OP-10 was studied. The complex of STAS with OP-10 was in 1∶1 and 1∶7 stoichiometries. The critical micelle concentration(CMC)of the mixed system was 0.08 mmol/L and 0.12 mmol/L, respectively. The surface tension at CMC was almost equal.