Molecular dynamics study of the effect of sodium and chloride ions on water-surfactant-hydrocarbon interfaces

Molecular dynamic simulations have been performed to study the effect of electrolyte concentrations and temperature on the structural, dynamic, and thermal properties of cationic surfactants at the water/n-decane interface. Results show that optimal salinity (where the interfacial tension (IFT) passes through a minimum) could be reached for erucylbis-(hydroxyethyl)-methylammonium chloride (EHAC). In contrast, the IFT of cetyltrimethylammonium...