Abstract
The adsorption behavior and micellar properties of the mixed binary ionic/nonionic surfactants containing cetyltrimethylammonium bromide (CTAB) and p-(1,1,3,3-tetramethylbutyl)polyoxyethylene Triton X-100 (TX-100) in aqueous mixture of ethylene glycol (EG) have been studied through surface tension and conductometry techniques. The Gibbs energy of the mixed micellization (ΔGmic°) was obtained from the critical micelle concentration (CMC) and counterion degree dissociation (αdiss) values. The differences in the Gibbs energies of mixed micellization of TX-100/CTAB between water and water + EG mixtures were calculated to monitor the influence of cosolvent on the micellization process. The role of the structure-breaking ability of EG (gsb) and electrostatic interaction in the process of micellization are surveyed in this article. The cosolvent effect on the interaction between two surfactants, CTAB and TX-100, in a mixed monolayer at the air−liquid interface (βδ) and mixed micelle (βM) was analyzed on the basi...
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