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Phase Diagram of a Lattice Model for Ternary Mixtures of Water, Oil, and Surfactants

Published online by Cambridge University Press:  25 February 2011

Mohamed Laradji ,
Hong Guo ,
Martin Grant  and
Martin J. Zuchkermann
Mohamed Laradji
Affiliation:
Centre for the Physics of Materials and Department of Physics, McGill University, 3600 Rue University, Montréal, Québec, Canada H3A 2T8
Hong Guo
Affiliation:
Centre for the Physics of Materials and Department of Physics, McGill University, 3600 Rue University, Montréal, Québec, Canada H3A 2T8
Martin Grant
Affiliation:
Centre for the Physics of Materials and Department of Physics, McGill University, 3600 Rue University, Montréal, Québec, Canada H3A 2T8
Martin J. Zuchkermann
Affiliation:
Centre for the Physics of Materials and Department of Physics, McGill University, 3600 Rue University, Montréal, Québec, Canada H3A 2T8
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Abstract

Large scale Monte-Carlo simulations have been performed on a lattice model for a three component system of water, oil, and surfactants to obtain the phase equilibria and scattering behavior for a wide range of temperatures and chemical potentials. We observed that this model has a rich phase behavior, namely a water-oil phase coexistence, a microemulsion phase, a lamellar phase, and a square phase. This phase diagram is consistent with experiments, and is in qualitative agreement with a model of Gompper and Schick [ Phys. Rev. Lett. 62, 1647 (1989)].

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 248: Symposium O – Complex Fluids , 1991 , 23
Copyright
Copyright © Materials Research Society 1992

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