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Micellar Properties of Alkyltrimethyl Ammmonium Bromide in Aquo-organic Solvent Media

Author Affiliations

  • 1Department of Engineering Chemistry, Bhilai Institute of Technology, Bhilai House, Durg (C.G.) INDIA
  • 2 Department of Chemistry, Govt V.Y.T. P.G. College, Durg (C.G.) INDIA

Res.J.chem.sci., Volume 1, Issue (4), Pages 22-29, July,18 (2011)


The thermodynamics of micellization and other micellar properties of cationic alkyl (C12, C14 and C16) trimethylammonium bromide surfactants in presence of water-dimethylformamide (5-20 % v/v) binary mixtures over a temperature range of 298-318 K have been studied conductometrically. On the basis of the results, the critical micelle concentration, degree of micellar ionization and thermodynamic parameters, free energy, enthalpy and entropy (GomHom and Som) of micellization have been determined. The increase of critical micelle concentration with solvent mixtures has been discussed on the basis of water structure, solvent properties and hydrophobic interaction.


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