测定了自制的9种烷基芳基磺酸盐复配体系在25℃下的临界胶束浓度cmc(1×10<'-5>moL/L)及临界胶束浓度下的表面张力γ<,cmc>(mN/m).研究了烷基芳基磺酸盐相对分子质量及其分布与表面性能的关系.平均相对分子质量432的5种分布cmc和γ<,cmc>值分别为:2.341和28.96(递增型分布);2.458和32.56(递减型分布);3.667和36.14(正态型分布);2.201和27.55(反正态型分布);2.761和33.54(均匀型分布).4种平均相对分子质量为390、418、432和446的递减型分布的cmc和γ<,cmc>值分别为:3.786和29.54;3.530和29.81;2.458和32.56;8.337和29.54.根据Gibbs吸附公式求出饱和吸附量Γ<,max>、饱和吸附面积A<,c>及降低表面张力的效率因子pC<,20>,对所得结果进行了解释.
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