Volume and heat capacity of sodium dodecyl sulfate-dodecyldimethylamine oxide mixed micelles

Mixed micelles containing sodium oleate: the effect of the chain length and the polar head group

“…They exist as either nonionic or cationic (protonated form) species depending on the pH of the aqueous solution and also depending on the other surfactants in the mixed systems. For the synergistic effects, a number of investigations have been undertaken on alkylglycosides [9][10][11][12][13][14][15][16][17] and amine oxide surfactant mixtures [18][19][20][21][22][23][24][25][26][27]. The equilibrium surface tension and dynamic surface tension measurements for binary mixtures were carried out and critical micelle concentration (cmc) values were determined.…”

Surface properties of mixed monolayers of sulfobetaines and ionic surfactants

“…The iterative resolution of these equations conduces to the unknown parameters X S 1 and β. In some mixed micelles one different β value for each composition was obtained [25][26][27][28], therefore we have calculated the interaction parameters for different compositions and results are represented in Fig. 3.…”

Micellisation thermodynamics of sodium lauroylsarcosinate in water–alcohol binary mixtures

“…The formation of surfactant aggregates in mixed aqueous-organic solvents systems has been extensively studied with the aim of characterising the effects of the solvent properties on the aggregation behaviour [1][2][3][4][5][6]. Polar organic solvents with properties similar to those of water, such as dimethylsulphoxide, acetonitrile, dimethylformamide, ethylene glycol, glycerol and monohydric alcohols, which are characterised by high dielectric constant, high cohesive energy and considerable hydrogen bond, have been widely studied [7][8][9][10][11][12][13][14][15].…”