Kationos-anionos ketto″s tenzidsók adszorpciója levego″/víz határfelületen

Translated title of the contribution: Adsorption of catanionic surfactants at air/solution interface

Research output: Contribution to journalArticle

Abstract

The adsorption of symmetric and asymmetric chain catanionic surfactants was investigated by surface tension measurement. The dynamic and equilibrium surface properties can be well interpreted in terms of a two-dimensional phase transition between a gas and condensed state of the adsorbed layer. The hydrophobia driving force as well as the increasing ionic strength of the medium in the case of asymmetric alkyl chains make the 2D phase transition unfavourable. A molecular interaction model was developed to describe the quasi-neutral adsorption and the two dimensional phase properties of the catanionics. The prediction of the model is in a good agreement with the observed surface characteristics of the investigated catanionic surfactants.

Original languageHungarian
Pages (from-to)476-484
Number of pages9
JournalMagyar Kemiai Folyoirat, Kemiai Kozlemenyek
Volume107
Issue number11
Publication statusPublished - Nov 2001

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Surface-Active Agents
Phase transitions
Adsorption
Molecular interactions
Air
Ionic strength
Surface properties
Surface tension
Gases

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Kationos-anionos ketto″s tenzidsók adszorpciója levego″/víz határfelületen. / Gilányi, T.; Mészáros, R.; Varga, Imre.

In: Magyar Kemiai Folyoirat, Kemiai Kozlemenyek, Vol. 107, No. 11, 11.2001, p. 476-484.

Research output: Contribution to journalArticle

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