【摘要】 以全氟辛基磺酰氟为基础原料,与N,N-二甲基-1,3-丙二胺磺酰化再与2-氯乙醇和过量环氧丙烷反应,得到一种聚醚季铵盐类阳离子型氟碳表面活性剂,用IR和1H NMR测试技术对其进行了表征。通过测定一系列浓度水溶液的表面张力,得到其临界胶束浓度CMC=54mmol/L,最低表面张力值达18.8mN/m。合成方法操作简便,产物表面活性较高。更多还原

【Abstract】 With perfluorooctanesulfonyl fluoride as raw material, a polyether quaternary ammonium salt cationic fluorocarbon surfactant was synthesized. Structures of the surfactant and its intermediates were characterized by IR and 1H NMR spectroscopies. The surface tension of the surfactant in aqueous solution was measured, the lowest surface tension was 18.8 mN/m, and its critical micell concentration(CMC) was 54 mmol/L. This indicates it has a better surface activity than that of common surfactants.更多还原