The Influence of Electrolytes on the Mixed Micellization of Equimolar (Monomeric and Dimeric) Surfactants

Md Sayem Alam*, A. Mohammed Siddiq, Asit Baran Mandal

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

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.

Original languageEnglish
Pages (from-to)185-190
Number of pages6
JournalRussian Journal of Physical Chemistry A
Volume92
Issue number1
DOIs
StatePublished - 1 Jan 2018
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2018, Pleiades Publishing, Ltd.

Keywords

  • critical micelle concentration
  • gemini surfactant
  • halide ions
  • mixed micelles
  • thermodynamics

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Fingerprint

Dive into the research topics of 'The Influence of Electrolytes on the Mixed Micellization of Equimolar (Monomeric and Dimeric) Surfactants'. Together they form a unique fingerprint.

Cite this