Interfacial dilational properties of di-substituted alkyl benzene sulfonates at kerosene/water and crude oil/water interfaces

摘要

Graphical abstract The mixed adsorption of crude oil components with di-substituted alkyl benzene sulfonate molecules will destroy the tight arrangement of surfactant molecules. Display Omitted Highlights ? An increase of alkyl chain length improves the surface activity of di-substituted alkyl benzene sulfonates. ? The active components in daqing crude oil form mixed adsorption films with di-substituted alkyl benzene sulfonates. ? The properties of surfactant films are dominated by the intermolecular interactions at kerosene/water interface.