【摘要】 以脱氢松香酸为原料,经磺化后,与试剂环氧丙基三乙基氯化铵反应合成了一种新型磺化脱氢松香基双季铵盐阳离子表面活性剂(Ⅲ),通过红外光谱对中间体及目标产物的结构进行确认,并测定Ⅲ的表面活性以及与十二烷基硫酸钠(SDS)复配体系的表面活性。结果表明,磺化脱氢松香酸含量为92%,阳离子表面活性物含量为91%,Ⅲ的临界胶束浓度(CMC)为1.1 mmol/L,泡沫力为12 mm,乳化力强。Ⅲ与SDS复配后,其界面活性产生较强烈的增效作用,两者的物质的量之比为1∶3时增效作用最显著。更多还原

【Abstract】 A new sulfodehydroabietic acid based bis-quaternary ammonium cationic surfactant(Ⅲ) was synthesized by sulfonation of dehydroabietic acid,followed by reaction with epoxypropyl triethyl ammonium chloride.Structures of products were characterized by IR.Surface activities of Ⅲ and the mixed system of sodium dodecyl sulphate(SDS) with Ⅲ were determined.Results show that content of sulfodehydroabietic acid is 92 % by weight and content of cationic surface active substance is 91 %.Critical micelle concentration(CMC) of Ⅲ is 1.1 mmol/L,and the foaming ability is 12 mm,showing a strong emulsification ability.Strong synergism of Ⅲ with SDS is observed,and the optimum synergism is obtained at the mass ratio of 1∶3.更多还原