The Influence of Electrolytes on the Mixed Micellization of Equimolar (Monomeric and Dimeric) Surfactants
- Autores: Alam M.1,2, Siddiq A.1, Mandal A.1,3
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Afiliações:
- Industrial Chemistry Laboratory
- Chemical Sciences, Academy of Scientific and Innovative Research (AcSIR)
- Chemical Laboratory
- Edição: Volume 92, Nº 1 (2018)
- Páginas: 185-190
- Seção: Physical Chemistry of Surface Phenomena
- URL: https://journals.rcsi.science/0036-0244/article/view/169876
- DOI: https://doi.org/10.1134/S0036024418010028
- ID: 169876
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Resumo
The influence of halide ions of (sodium salt) electrolytes on the mixed micellization of a cationic gemini (dimeric) surfactant, hexanediyl-1,6-bis(dimethylcetylammonium) bromide (16-6-16) and a cationic conventional (monomeric) surfactant, cetyltrimethylammonium bromide (CTAB) have been investigated. The critical micelle concentration (CMC) of the mixed (16-6-16+CTAB) surfactants was measured by the surface tension measurements. The surface properties: viz., the surfactant concentration required to reduce the surface tension by 20 mN/m (C20), the surface pressure at the CMC (ΠCMC), the maximum surface excess concentration at the air/water interface (Γmax), the minimum area per surfactant molecule at the air/water interface (Amin), etc. of the mixed micellar surfactant systems were evaluated. In the absence and presence of electrolytes, the thermodynamic parameters of the mixed micellar surfactant systems were also evaluated.
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Sobre autores
Md. Alam
Industrial Chemistry Laboratory; Chemical Sciences, Academy of Scientific and Innovative Research (AcSIR)
Autor responsável pela correspondência
Email: sayemalam@gmail.com
Índia, Adyar, Chennai, 600020; New Delhi, 110001
A. Siddiq
Industrial Chemistry Laboratory
Email: sayemalam@gmail.com
Índia, Adyar, Chennai, 600020
Asit Mandal
Industrial Chemistry Laboratory; Chemical Laboratory
Email: sayemalam@gmail.com
Índia, Adyar, Chennai, 600020; Adyar, Chennai, 600020