Abstract

The processes of synthesis of quaternary ammonium salts (surfactants) based on oleic acid with subsequent study of the porous structure of the resulting organobentonites have been studied. Synthesis of surfactants was carried out in several stages, including ammonolysis of oleic acid, hydrolysis of amides, hydrogenation of nitriles, and alkylation of primary amines. Organobentonites were obtained by modifying bentonite with synthesized surfactants. The study of textural characteristics indicates a significant increase in the surface and the development of a porous structure after the modification of bentonite. Key parameters of textural characteristics were compared for different samples of organobentonites obtained using different surfactants. Samples of organobentonite obtained with various organic modifiers had different textural characteristics, which indicates the effect of the chemical composition of the organic modifier on the porous structure of the material.