Home – Home – Jornals – Chemistry for Sustainable Development 2021 number 2

The effect of K-210 additive, developed on the basis of the ordered amphiphilic nitrogen-containing polymer, on the structural-rheological characteristics of water-oil emulsions is investigated. The presence of water in oil-containing dispersed systems (ODS) as 10 % oil emulsions is characterized by a primary increase in the degree of additive inhibition for all emulsions under study. An increase in the degree of inhibition may be a consequence of the fact that the additive contains an amphiphilic polymer, which is soluble both in the organic phase and in water. The studies showed that the group composition of the precipitates depends on the degree of additive inhibition. Changes in the group composition may be explained by the structural-phase transitions of the fractions of resinous-asphaltenic components. Differences in the composition of resins and asphaltenes of ODS were studied by means of IR spectroscopy. It was established that an increase in the fraction of water in the resins of asphaltene-resin-paraffin deposits (ARPD) in emulsions causes an increase in the condensed aromatic oxygen- and sulphur-containing fragments. Investigation of the surface tension of resin and asphaltene fractions revealed that the maximal surface activity is characteristic of the resinous-asphaltenic components of ARPD oil emulsions with a minimal degree of additive inhibition.