Аннотация
A mixture of fatty carboxylic acids (FCA) was derived from technical vegetable oil -a residue of sunflower oil production.Chromatographic-mass spectrometric analysis revealed that the mixture primarily consists of nine types of fatty carboxylic acids.Nonionic surfactants (NIS), specifically FCA-PEG esters, were synthesized via esterification of the FCA mixture with polyethylene glycol (PEG) of molecular weights 300, 600, and 1000.The reaction yield was 93-94%.The functional composition