Jump to main content
Jump to site search

Issue 4, 2008
Previous Article Next Article

Binary mixtures of β-dodecylmaltoside (β-C12G2) with cationic and non-ionic surfactants: micelle and surface compositions

Author affiliations

Abstract

Surfactants used for practical applications are usually surfactant mixtures because they often exhibit a performance that is superior to the individual surfactants. In the present study binary mixtures of the sugar based surfactant n-dodecyl-β-D-maltoside (β-C12G2) with the cationic surfactant dodecyl trimethylammonium bromide (C12TAB) and the non-ionic hexaethylene-glycol dodecyl ether (C12E6), respectively, were investigated at different bulk mole fractions. Surface tension measurements were used to determine the critical micelle concentration and the surfactant composition at the surface. In addition, the regular solution theory was used to calculate interaction parameters as well as the mole fractions of the individual surfactants in the mixed air–water monolayer and in the mixed micelles, respectively. It was found that n-dodecyl-β-D-maltoside interacts weakly with the cationic surfactant (C12TAB) and that it dominates in both the mixed monolayer and the mixed micelles. On the other hand, β-C12G2 and C12E6 mix ideally in solution. For both surfactant mixtures the surfactant composition at the surface determined by surface tension measurements and by the regular solution theory, respectively, were compared and discussed in detail.

Graphical abstract: Binary mixtures of β-dodecylmaltoside (β-C12G2) with cationic and non-ionic surfactants: micelle and surface compositions

Back to tab navigation

Supplementary files

Article information


Submitted
10 Dec 2007
Accepted
21 Jan 2008
First published
22 Feb 2008

Soft Matter, 2008,4, 840-848
Article type
Paper

Binary mixtures of β-dodecylmaltoside (β-C12G2) with cationic and non-ionic surfactants: micelle and surface compositions

S. R. Patil, N. Buchavzov, E. Carey and C. Stubenrauch, Soft Matter, 2008, 4, 840
DOI: 10.1039/B719014J

Social activity

Search articles by author

Spotlight

Advertisements