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Theory of Shape Transitions in Microemulsions

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Book cover Surfactants in Solution

Abstract

We construct the mean-field phase diagram for microemulsion shapes in the dilute globule limit. The phenomenological bending energy of a globule is motivated by a microscopic model of the elasticity of the surfactant layer. We find spherical, lamellar and cylindrical phases to be stable. In the novel cylindrical phase, the cylinders are rigid for lengths smaller than a persistence length ξc; for lengths larger than ξc‚ the cylinders can behave like polymers in solution. As the persistence length and the degree of polymerization depend on the concentration of dispersed phase, these cylindrical microemulsions should exhibit interesting concentration dependence for the radius of gyration and viscosity.

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Author information

Author notes

  1. L. A. Turkevich

    Present address: Corporate Research, The Standard Oil Company (Ohio), 4440 Warrensville Center Road, Cleveland, Ohio, 44128, USA

  2. P. A. Pincus

    Present address: Materials Program, University of California at Santa Barbara, Santa Barbara, California, 93106, USA

Authors and Affiliations

  1. Department of Physics, Princeton University, Princeton, NJ, 08544, USA

    L. A. Turkevich

  2. Corporate Research Science Laboratories, Exxon Research and Engineering Company, Clinton Township, Rte. 22 East, Annandale, NJ, 08801, USA

    S. A. Safran & P. A. Pincus

Authors
  1. L. A. Turkevich
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  2. S. A. Safran
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  3. P. A. Pincus
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Editor information

Editors and Affiliations

  1. IBM Corporate Technical Institutes, 500 Columbus Ave., Thornwood, NY, 10594, USA

    Kashmiri Lal Mittal M.Sc.(First Class First), Ph.D. (Fellow of the American Institute of Chemists and Indian Chemial Society) (Fellow of the American Institute of Chemists and Indian Chemial Society)

  2. Centre de Recherches Paul Pascal, Domaine Universitaire, F-33405, Talence Cedex, France

    P. Bothorel (Professor of Chemistry at the University of Bordeaux, Assistant Director, Scientific Director of the GRECO “Microemulsions” (French cooperative action on microemulsions), consultant to the French Oil Company) (Professor of Chemistry at the University of Bordeaux, Assistant Director, Scientific Director of the GRECO “Microemulsions” (French cooperative action on microemulsions), consultant to the French Oil Company)

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© 1986 Plenum Press, New York

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Turkevich, L.A., Safran, S.A., Pincus, P.A. (1986). Theory of Shape Transitions in Microemulsions. In: Mittal, K.L., Bothorel, P. (eds) Surfactants in Solution. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-1833-0_4

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  • DOI: https://doi.org/10.1007/978-1-4613-1833-0_4

  • Publisher Name: Springer, Boston, MA

  • Print ISBN: 978-1-4612-9024-7

  • Online ISBN: 978-1-4613-1833-0

  • eBook Packages: Springer Book Archive

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