Title of article
Dynamic properties of CnTAB adsorption layers at the water/oil interface
Author/Authors
Mucic، نويسنده , , N. and Kovalchuk، نويسنده , , N.M. and Pradines، نويسنده , , V. and Javadi، نويسنده , , A. and Aksenenko، نويسنده , , E.V. and Krنgel، نويسنده , , J. and Miller، نويسنده , , R.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2014
Pages
6
From page
825
To page
830
Abstract
The dynamic interfacial tension and dilational rheology of alkyltrimethylammonium bromides (CnTAB) solutions are studied for n = 10, 12, 14 and 16 using drop profile analysis and capillary pressure tensiometry. The experimental data are analyzed on the basis of two theoretical models, the Frumkin Ionic Compressibility and the Langmuir Compressibility models [1]. We show that even the simplified Langmuir Compressibility model is able to adequately describe the dynamic properties of the investigated ionic surfactants. Dynamic experiments point out the difficulties related to short chain surfactants due to their very fast adsorption kinetics which cannot be studied with conventional tensiometer setups.
Keywords
Dynamic interfacial tension , Thermodynamic models , Dilational rheology , Cationic surfactants , water/hexane interface , Drop profile analysis tensiometry , Capillary pressure tensiometry , Alkyltrimethylammonium bromide
Journal title
Colloids and Surfaces A Physicochemical and Engineering Aspects
Serial Year
2014
Journal title
Colloids and Surfaces A Physicochemical and Engineering Aspects
Record number
1945346
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