A statistical model is developed to represent the adsorption of a soluble surface active material at an oil/water interface. The lowering of interfacial tension associated with this lattice gas representation is compared with predictions based on a regular solution theory and with experiment. The concentration dependence of film pressures can be predicted if values of the model parameters are appropriately chosen.
J. T. O'Toole and L. H. Shendalman, Trans. Faraday Soc., 1967, 63, 1584 DOI: 10.1039/TF9676301584
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