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Título

The adsorption kinetics of 1-N-L-tryptophan–glycerol-ether surfactants at the air–liquid interface: effect of surfactant concentration and alkyl chain length

AutorDelgado Andrade, Cristina; Merchán, M. Dolores; Velázquez, M. Mercedes; Pegiadou, Sofía; Pérez, Lourdes; Infante, María Rosa
Palabras clave1-N-L-Tryptophan–glycerol-ether surfactants
Dynamic surface tension
Adsorption kinetics
Diffusion-controlled adsorption
Frumkin–Davies isotherm
Fecha de publicación13-ene-2004
EditorElsevier
CitaciónColloids and Surfaces A Physicochemical and Engineering Aspects 233 (1-3): 137-144 (2004)
ResumenDynamic surface tension of aqueous alkaline solutions of 1-N-L-tryptophan–glycerol-ether surfactants, Cn-TEG, below its critical micelle concentration has been measured as a function of the surfactant concentration and over a temperature range of 19.7–31.5 °C. The static tension of the alkyl tryptophan–glycerol-ether surfactants with n=9–11 is analyzed in terms of the combined Frumkin–Davies isotherm. By using this state equation the adsorption kinetics of these surfactants can be interpreted as a diffusion-controlled process.
Descripción8 pages, 9 figures, 1 table.-- Printed version published Feb 10, 2004.
Versión del editorhttp://dx.doi.org/10.1016/j.colsurfa.2003.11.023
URIhttp://hdl.handle.net/10261/18724
DOI10.1016/j.colsurfa.2003.11.023
ISSN0927-7757
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