Journal of Surface Science and Technology

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Studies on the Effect of Cosurfactant on the Phase Behaviour of Water in Oil (CCl4/Water/TritonX-100/n-Alkanol) Microemulsions


Affiliations
1 Department of Physical Chemistry, University of Madras, A. C. College Campus, Madras 600 025, India
2 Department of Chemical Engineering, Vellore Engineering College, Vellore 14, India
     

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The phase diagrams for the four component (CCl4/Water/Triton X-100/n-alkanol) water in oil microemulsion systems are established at 25°C. It was found that the inverse micellar solution phase area extends upto 35-45 wt% when the cosurfactants are varied homologously from methanol to n-octanol in the microemulsion preparations. On the basis of the experimental results of specific conductivity, viscosity, etc., for samples containing a definite amount of TX-100 and varying relative amounts of CCl4 and water, the effect of cosurfactant carbon chain length on the formation mechanism of the inverse swollen micellar droplet structure (L2 phase) is rationalized and also verified from typical SAXS and TEM data.
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  • Studies on the Effect of Cosurfactant on the Phase Behaviour of Water in Oil (CCl4/Water/TritonX-100/n-Alkanol) Microemulsions

Abstract Views: 176  |  PDF Views: 2

Authors

J. Santhanalakshmi
Department of Physical Chemistry, University of Madras, A. C. College Campus, Madras 600 025, India
A. Parameswari
Department of Chemical Engineering, Vellore Engineering College, Vellore 14, India

Abstract


The phase diagrams for the four component (CCl4/Water/Triton X-100/n-alkanol) water in oil microemulsion systems are established at 25°C. It was found that the inverse micellar solution phase area extends upto 35-45 wt% when the cosurfactants are varied homologously from methanol to n-octanol in the microemulsion preparations. On the basis of the experimental results of specific conductivity, viscosity, etc., for samples containing a definite amount of TX-100 and varying relative amounts of CCl4 and water, the effect of cosurfactant carbon chain length on the formation mechanism of the inverse swollen micellar droplet structure (L2 phase) is rationalized and also verified from typical SAXS and TEM data.