SYNTHESIS AND COLLOIDAL-CHEMICAL PROPERTIES OF NEW SURFACE-ACTIVE DERIVATIVES OF MALEIC ACID

Abstract

The purpose of this work was synthesis of new surface-active derivatives of maleic acid and establishing correlations between their colloid-chemical properties. The well-known methods for synthesis and determining the properties of surfactants were used in the work. The new surface-active derivatives of maleic acid were synthesized and their colloid chemical properties investigated. The synthesis of new surfactants was carried out by condensation of maleic anhydride with ethylenglicols and the reaction product was esterified with primary alcohols. The surface activity and foaming ability of the obtained new surfactants in aqueous solutions were studied. The obtained results showed that with an increase in the length of the aliphatic hydrocarbon chain, the surface activity of benzoic acid derivative surfactants increases. The analysis of results showed a good correlation between the foam forming ability and the surface activity of the studied surfactants. Based on the studies it was established that the stability of foams is significantly determined by the interaction of surfactant molecules in the monolayer.