Self-Association, Mixed Micellization, and Thermodynamic Studies of Sodium Dodecyl Sulfate (SDS) and Hexanediyl-1, 6-Bis(Dimethylcetylammonium Bromide) (16-6-16). Issue 12 (1st December 2016)

• Record Type: Journal Article
• Authors: Alam, Md. Sayem; Ragupathy, R.; Mandal, Asit Baran
• Is Part Of: Journal of dispersion science and technology. Volume 37:Issue 12(2016)
• Page Start: 1760
• Page End: 1766
• Publication Date: 2016-12-01
• Subjects: CMC -- gemini surfactant (16-6-16) -- mixed micelles -- SDS -- thermodynamics; Emulsions -- Periodicals; Suspensions (Chemistry) -- Periodicals; Emulsions; Suspensions; 541.34
• DOI: 10.1080/01932691.2016.1138228
• Languages: English
• ISSNs: 0193-2691

Abstract

Abstract : The self-association, mixed micellization, and thermodynamic studies of a conventional anionic surfactant, sodium dodecyl sulfate (SDS), and a cationic gemini surfactant, hexanediyl-1, 6-bis(dimethylcetylammonium bromide) (16-6-16), have been reported in the present investigation. The critical micelle concentration (CMC) of pure and mixed (SDS, 16-6-16, and SDS + 16-6-16) surfactants was measured by electrical conductivity and dye solubilization measurements. The CMC values were found to increase with increasing temperature. The thermodynamic parameters (viz., the standard Gibbs energy ( ), the standard enthalpy change ( ), and the standard entropy change ( )) of the micellar and mixed micellar systems were evaluated. GRAPHICAL ABSTRACT: