Studies of Lyotropic Liquid Crystalline Phase in Sodium Dodecylsulfate - Water System by Density and Conductivity Measurements

Shinichi Yano Department of Synthetic Chemistry, Faculty of Engineering, Gifu University, Yanagido, Gifu, 501-11, Japan

Kenji Tadano Department of Synthetic Chemistry, Faculty of Engineering, Gifu University, Yanagido, Gifu, 501-11, Japan; Gifu College of Technical Medicine, Ichihira, Seki, Gifu, 501-11, Japan

Koichiro Aoki Department of Synthetic Chemistry, Faculty of Engineering, Gifu University, Yanagido, Gifu, 501-11, Japan

Abstract

Phase transition of isotropic micelle solution (I) to middle (M₁) phase in sodium dodecyl sulfate(SDS) - water system has been studied by density and conductivity measurements. Plots of density and conductivity versus SDS concentration exhibited a discontinuous change near the concentration of the transition (about 37 wt% of SDS). From these results, the mechanism of I-M₁ phase transition was discussed.

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Studies of Lyotropic Liquid Crystalline Phase in Sodium Dodecylsulfate - Water System by Density and Conductivity Measurements

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Studies of Lyotropic Liquid Crystalline Phase in Sodium Dodecylsulfate - Water System by Density and Conductivity Measurements

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