Micro-emulsions in oil-water-surfactant mixtures: an Ising lattice gas model
- 20 June 1987
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 20 (17) , L361-L366
- https://doi.org/10.1088/0022-3719/20/17/001
Abstract
An Ising lattice gas model is constructed for oil-water-surfactant mixtures. The phase diagram of this model is obtained by using mean-field theory and Monte Carlo simulations. The paramagnetic phase displays microstructures similar to those found in laboratory micro-emulsions. Also oil-rich, water-rich, and micro-emulsion phases coexist in certain regions and long-lived, metastable phases are common at low temperatures. Low-period, modulated phases are found. The experimental relevance of these phases and the limitations of the authors model are discussed.Keywords
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