Random Surfactant Assemblies and Microemulsions

  • M. E. Cates
Part of the NATO ASI Series book series (NSSB, volume 211)

Abstract

Surfactant molecules in dilute solution have a strong tendency to aggregate reversibly into larger structures1. While this often involves the formation of simple, roughly spherical micelles, there is now strong experimental and industrial interest in materials whose behaviour is more complicated. The resulting assemblies are often sufficiently large and/or flexible that their spatial configurations are highly entropic. In the one-dimensional case, there is a close analogy with polymers2. In what follows, we consider sheet-like bilayer assemblies, for which the corresponding analogy is with the theory of random surfaces, an area in which many fundamental problems remain to be solved. The theory of microemulsions (oil/water surfactant mixtures in which regions of each solvent are separated from one another by a surfactant monolayer) can also be described as a random surface problem, at least in the “balanced” case of oil/water symmetry.

Keywords

Entropy Surfactant Hexagonal Sponge Turbidity 

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Copyright information

© Plenum Press, New York 1989

Authors and Affiliations

  • M. E. Cates
    • 1
  1. 1.Cavendish LaboratoryCambridgeUK

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