【摘要】 在无探针条件下用循环伏安法测定了不同形状SDS和CTAB胶束的扩散系数，进而得到第一CMC和第二CMC（SDS：第一CMC和第二CMC分别为8．0×10－3和5．6×10－2mol·L-1;CTAB：第一CMC和第二CMC分别为8．9×10－4和2．1×10－2mol·L－1）．此法为表面活性剂体系物理化学性质的研究，特别是为第二CMC测定提供了一个新的研究方法．更多还原

【Abstract】 A new electrochendcal method is showed for study of physical chemisty character of surfactant systems, and particularly determination of second CMC. The diffusion coefficients of SDS and CATB micelles with different shapes are determined by cyclic voltammetry without any probe, and the first CMC and second CMC are obtained from the intersections of diffusion coefficients vs concentration curve (first CMC and second CMC are 8.0 ×10-3mol·L-1 and 5.6 ×10-2mol·L-1 for SDS, 8.9×10-4 and 2.1 ×10-2 mol·L-1 for CTAB).更多还原