15 research outputs found
Entropic, electrostatic, and interfacial regimes in concentrated disordered ionic emulsions
Full text linkElectrostatic Screening and Charge Correlation Effects in Micellization of Ionic Surfactants
Full text linkDetermining Critical Micelle Concentrations of Surfactants Based on Viscosity Calculations from Coarse-Grained Molecular Dynamics Simulations
No full textLamellar to hexagonal columnar liquid crystalline phase transition in a catanionic surfactant mixture: dodecylammonium chloride–sodium bis(2-ethylhexyl) sulfosuccinate
No full textPreparation of Hydrophobic Association Polyacrylamide in a New Micellar Copolymerization System and Its Hydrophobically Associative Property
No full textEffect of Concentration and Addition of Ions on the Adsorption of Aerosol-OT to Sapphire
No full textUse of Surfactant as Mobile Phase Additive in LC for Simultaneous Determination of Metal-Pyrrolidine Dithiocarbamate Chelates
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Effect of Ascorbic Acid on the Colloidal and Micellar Properties of Anionic, Cationic, and Nonionic Surfactants: Conductivity, Volumetric, Viscometric, and Fluorescence Study
No full textCatanionic Micelles As a Model to Mimic Biological Membranes in the Presence of Anesthetic Alcohols
No full textWe show here the influence of n-alcs. (C2OH-C8OH) on the soly. behavior of cationic-anionic surfactant mixts., so-called "catanionics". We studied catanionics of different compns. composed of sodium dodecyl sulfate (SDS)/cetyltrimethylammonium bromide (CTAB) and sodium dodecanoate (SDod)/CTAB mixts. Interestingly, with a molar excess of SDS, long chain n-alcs. (C4OH-C8OH) significantly depress the soly. temp. of the SDS + CTAB catanionic and increase the kinetic stability of the soln. The visual observations of soly. temps. of catanionics were further confirmed by differential scanning calorimetry (DSC) measurements. For the catanionics a multistep solubilization was obsd. by DSC, for which the sulfate headgroup is responsible. This was probed by replacing SDS by SDod. A remarkable analogy was found between the influence of the alcs. on the soly. patterns of the catanionic mixts. and on the anesthesia of tadpoles. Possible reasons for this analogy are discussed also in this paper
