Croatica Chemica Acta, Vol. 71 No. 4, 1998.
Original scientific paper
Adsorption of Ammonium Perfluorooctanoate at the Air–Water Interface
Geraldine A. Ottewill
; School of Chemistry, Physics and Radiography, University of Portsmouth, Portsmouth PO1 2DT, U.K.
Ronald H. Ottewill
; School of Chemistry, University of Bristol, Bristol BS8 1TS, U.K.
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.
Keywords
Hrčak ID:
132439
URI
Publication date:
1.12.1998.
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