Citation: LIU Jin-Yan, HAN Wai-Hui, ZHANG Yan, YAO Chao-Huai. Studies on the Conductivity ofMixed Reverse Micelles of Anionic and Non-Ionic Surfactants[J]. Acta Physico-Chimica Sinica, ;2010, 26(06): 1552-1556. doi: 10.3866/PKU.WHXB20100536
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In the SDS/Tween60/hexanol/cyclohexane/water system, a conductivity maximum was observed in the conductivity (κ) and molar ratio of water to surfactants (W0) curves for mixed reverse micelles. The W0,max moved to a bigger W0 value as the xSDS (molar fraction of anionic surfactant) value increased. At xSDS≤0.5, the conductivity values that correspond with W0,max increased as xSDS increased; and at xSDS≥0.5, the conductivity values decreased. In the AOT/Tween60/cyclohexane/water system, the observed phenomenon was similar to the SDS/Tween60/hexanol/cyclohexane/water system. However, conductivity values that correspond with W0,max increased with increasing xAOT and there was no maximum value. The difference is mainly due to cosurfactant effects, which was confirmed by the SDS/TritionX-100/hexanol/cyclohexane/water system.
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