The Influence on Interfacial Tension of the Combination of Anionic and Cationic Surfactants: Alkyl Sulfonate/Alkyltrimethylammonium Bromide

Mioellization of aqueous mixture of sodium octyl sulfonate ( C 8 As )/ cetyltrimethylammonium bromide (CTAB) and sodium dodecyl sulfonate (C 12 As)( CTAB in the presence of sodium bromide has been studied by surface tension measurement. Nonideal solution theory has been used to calculate the molecul...

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Bibliographic Details
Published in:Journal of dispersion science and technology 1995-09, Vol.16 (6), p.435-449
Main Authors: Li, Gan-zou, Li, Fang, Yuan, Hong-ju
Format: Article
Language:English
Subjects:
Chemistry
Exact sciences and technology
General and physical chemistry
Surface physical chemistry
Surface-active agents: properties
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Summary:Mioellization of aqueous mixture of sodium octyl sulfonate ( C 8 As )/ cetyltrimethylammonium bromide (CTAB) and sodium dodecyl sulfonate (C 12 As)( CTAB in the presence of sodium bromide has been studied by surface tension measurement. Nonideal solution theory has been used to calculate the molecular interaction parameters (β M and β s ). The oil-aqueous interfacial tensions of C 12 As/ CTAB, C 8 As/CTAB, C 12 As/dodecyl trimethylammonium bromide (DTAB) systems were also measured. We studied the influence of the surfactant concentration, surfactant molar fraction ratio, hydrocarbon chain length, added NaCl and alcohol concentration on the interfacial tension.
ISSN:0193-2691
1532-2351
DOI:10.1080/01932699508943698