Mixed Micellar Properties and Related Interaction Parameters of Butanediyl-1,4-bis(dodecyl dimethyl ammonium bromide) Gemini Surfactant with Nonionic Amphiphiles

作者：Kabir ud Din^*; Sharma Gaurav; Koya P Ajmal

来源：Journal of Surfactants and Detergents, 2014, 17(3): 441-451.

DOI：10.1007/s11743-013-1556-z

• Gemini surfactant
• Nonionic surfactant
• Triblock copolymer
• Critical micelle concentration
• Mixed micelle formation

Mixed micellization of cationic gemini surfactant butanediyl-1,4-bis(dimethyldodecylammonium bromide) with nonionic surfactants (sorbitan esters, alcohols and phenol ethoxylates) and triblock copolymers has been studied tensiometrically. Various physicochemical parameters of the studied systems including ideal CMC values, experimental and ideal micellar compositions, interaction parameters, activity coefficients of the components, etc. have been evaluated by considering theoretical models of Clint, Rubingh, Rosen and Maeda. The experimental critical micelle concentration (CMC) values of the mixed micelles were lower than the CMC values of the individual components and showed a negative deviation from ideal CMC (CMC*) values. The analysis reveals that the mole fractions of gemini are lower compared to the nonionic surfactants/triblock polymers and the values of Delta G (m) (A degrees) , Delta G (ad) (A degrees) , G (min) and Delta G (ex) (m) show that the spontaneity of the studied mixed micelles relatively decreases as the content of the gemini in the bulk phase increases.

• 出版日期2014-5