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Phase equilibria in a model microemulsion

Author

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  • Balbuena, P.
  • Borzi, C.
  • Widom, B.

Abstract

The phase equilibria in an earlier model of a microemulsion are determined for varying values of the surfactant-film-curvature and interaction-energy parameters. When there is no curvature bias (Bancroft parameter = 0), so that the oil and water components play symmetrical roles, we find a critical endpoint, at which the locus of critical points between oil- and water-rich phases and the locus of oil-water-microemulsion triple points both terminate. This is the analog of the Lifshitz point (although the ordering is different) in the anisotropic next-nearest-neighbor Ising (ANNNI) model in vanishing external field. The evolution of the phase diagram as the curvature-bias parameter departs from 0 and as the oil-water interaction energy varies is traced.

Suggested Citation

  • Balbuena, P. & Borzi, C. & Widom, B., 1986. "Phase equilibria in a model microemulsion," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 138(1), pages 55-75.
    • Handle: RePEc:eee:phsmap:v:138:y:1986:i:1:p:55-75
    DOI: 10.1016/0378-4371(86)90173-1
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    1. Prager, Jonas, 1978. "Regulatory Reform in Banking, or Taking the Bull By the Horns," Working Papers 78-10, C.V. Starr Center for Applied Economics, New York University.
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    1. Widom, B. & Dawson, K.A. & Lipkin, M.D., 1986. "Hamiltonian and phenomenological models of microemulsions," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 140(1), pages 26-34.

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