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Investigation on the mixed micellar systems of cationic surfactants with propylene glycol and its oligomers |
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| Authors: | Marianne?P.?Rodgers,Christopher?C.?Rodgers,Animesh?K.?Rakshit,Rama?M.?Palepu author-information" > author-information__contact u-icon-before" > mailto:rpalepu@stfx.ca" title=" rpalepu@stfx.ca" itemprop=" email" data-track=" click" data-track-action=" Email author" data-track-label=" " >Email author |
| Affiliation: | (1) Department of Chemistry, St. Francis Xavier University, Antigonish, Nova Scotia , B2G 2W5, Canada;(2) Dept. of Chemistry, M.S. University of Baroda, 390002 Baroda , India; |
| Abstract: | The effects of the addition of several propylene glycol oligomer additives on the micellar properties of the cationic mixed micelle system of cetyltrimethylammonium bromide (CTAB) and tetradecyltrimethylammonium bromide (TTAB) were investigated. Through conductivity studies, the critical micelle concentration (cmc) and counter-ion binding values were observed in the presence of the additives. A regular solution approach was employed to determine the effects of the additives on the interactions between the two surfactants to form the mixed micelles. The effects of the additives on the interaction parameter and the composition of the mixed micelles were evaluated. Excess Gibbs energy of mixing and the values of activity coefficients were also calculated and described in terms of non-ideality of the system. |
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