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The European Physical Journal E

, Volume 2, Issue 3, pp 255–264 | Cite as

Thermodynamics of superspreading

  • A. Kabalnov

Abstract:

A simple model for calculation of the spreading coefficient of an aqueous surfactant solution on an apolar solid is proposed. The spreading coefficient is predicted to have two components: i) the van der Waals component, which is similar to the spreading coefficient of the alkane, making up the surfactant tail; and ii) the monolayer frustration component, dependent on the bending moduli and the spontaneous curvature of the surfactant. The frustration term is minimized at a negative spontaneous curvature. In order for a solution to spread, the van der Waals component of the spreading coefficient must be positive and larger than the monolayer frustration term. The spreading is facilitated by surfactants having very short and branched alkyl tails.

Keywords

Surfactant Alkane Simple Model Surfactant Solution Spreading Coefficient 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© EDP Sciences, Springer-Verlag, Società Italiana di Fisica 2000

Authors and Affiliations

  • A. Kabalnov
    • 1
  1. 1.Hewlett Packard Company, 1000 NE Circle Blvd., Corvallis OR 97330, USAUS

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