Adsorption of Ammonium Perfluorooctanoate at the Air–Water Interface

Abstract

The adsorption of ammonium perfluorooctanoate has been investigated at the air-water interface as a function of surfactant concentration at various concentrations of ammonium chloride. The area occupied by the surfactant ion was then calculated from the Gibbs equation with allowance for the presence of salt ions. Independently, the area per surfactant ion at the interface was determined by the technique of neutron reflectiviy. Within experimental error the two sets of measurements were in good agreement.

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Cite this paper

@inproceedings{Ottewilla2003AdsorptionOA, title={Adsorption of Ammonium Perfluorooctanoate at the Air–Water Interface}, author={Geraldine A. Ottewilla and Ronald H. Ottewillb and Brian A Pethica}, year={2003} }