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Viscoelastic properties of dodecylammonium chloride monolayers
YKI – Ytkemiska institutet.
YKI – Ytkemiska institutet.
1995 (English)In: Journal of Colloid and Interface Science, ISSN 0021-9797, E-ISSN 1095-7103, Vol. 171, 162-167 p.Article in journal (Refereed)
Abstract [en]

Monolayers of dodecylammonium chloride formed at the solution-air interface at different electrolyte concentrations have been investigated by dynamic surface light scattering. Pronounced maxima in the damping of capillary waves were observed at surfactant concentrations around 0.1xCMC. These maxima occur at concentrations just above the break points in the surface tension vs. concentration curves caused by first order phase transitions from a gaseous to a liquid- expanded state. The experimental results were analysed by comparing with theoretical calculations based on the standard theory of light scattering due to capillary waves on liquid surfaces, and the molecular theory of the surface tension of ionic surfactant solutions presented earlier by Eriksson and Ljunggren. In this way it was possible to account satisfactorily for the observed concentration and salt dependencies of the central frequency and width of the spectral peak.

Place, publisher, year, edition, pages
1995. Vol. 171, 162-167 p.
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-26755OAI: oai:DiVA.org:ri-26755DiVA: diva2:1053758
Note
A880Available from: 2016-12-08 Created: 2016-12-08Bibliographically approved

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