Synthesis and research of surfactants based on dodecanoic acid with N,N`-bis(2aminoethyl)-1,2-ethanediamine and 1,2 epoxypropane
Year: 2025
Type: article
Abstract: This study is devoted to the synthesis and study of surface-active properties of products obtained on the basis of dodecanoic acid, N,N'-bis(2-aminoethyl)-1,2ethanediamine and 1,2 epoxypropane.The composition and structure of the synthesized products were confirmed using the infrared spectroscopy method, their physicochemical characteristics were determined.Aqueous solutions of the obtained products were prepared in a wide range of concentrations and the surface tension values were determined using a tensiometer at the boundary with air.Based on these data, isotherms were constructed and their colloid-chemical parameters were calculated using known formulas, such as the critical micelle concentration, the surface tension of the solution at the critical micelle concentration, maximum adsorption, the minimum cross-sectional area of the polar group, the surface pressure or efficiency, the cost-effectiveness value.The specific conductivity was studied using the conductometric method.The dynamic light scattering method was used to determine the particle sizes in aqueous solutions at three concentrations of the surfactant.Thermogravimetric analysis was used to study the thermal properties of the obtained substances.The oil-collecting capacity of the synthesized surfactant was studied in laboratory conditions with respect to thin (less than 1 cm thick) films of oil from the Balakhan oil field on the surface of waters with different degrees of mineralization (sea, fresh and distilled).The reagents were tested undiluted and in the form of 5% aqueous solutions
Source: PPOR
Language: English
Subfield: Physical and Theoretical Chemistry
Field: Chemistry
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W4411083023