SYNTHESIS AND RESEARCH OF NEW GEMINI TYPE SURFACTANTS BASED ON TETRADECANOIC ACID WITH 1,2 DIAMINOETHANE, N -(2-AMINOETHYL)-1,2-ETHANEDIAMINE AND POLY(N-ETHENAMINE)

This work gives detailed information about Gemini surfactants based on tetradecanoic acid with 1,2-diaminoethane, N-(2-aminoethyl)-1,2-ethanediamine and poly(N-ethenamine). The composition and structure of the resulting products were identified by IR and UV spectroscopies. The physicochemical parameters were studied by measuring parameters such as surface tension and electrical conductivity of the aqueous solutions of the resulting salts of various concentrations. Also, using tensiometer at the air-water interface, the surfaceactive properties of aqueous solutions of synthesized reagents of various concentrations were determined. As a result, the dependence between concentrations on surface tension was established, and parameters related to surface-active properties were calculated (critical micelle concentration, maximum adsorption (G(max)), minimum surface area of the molecule at the airwater interface (A(min)), surface pressure (pi CMC)). The properties of electrical conductivity were studied using the conductometric method, a graph of the dependence of concentrations on specific electrical conductivity was plotted, and thermodynamic parameters were calculated (Gibbs free energy of micellization (Delta G(mic)) and adsorption (Delta G(ads) )). The petrocollecting and petrodispersing abilities of the resulting reagents in water with varying degrees of mineralization was also studied using their 5% aqueous solution and in pure reagent form using Balakhani crude oil for the experiment and it was found that the resulting reagents have high petrocollecting and petrodispersing ability