Synthesis and properties of dimeric surface-active reagents based on o-(4-iso-nonylphenyl) dodecaethylene glycol

Surface active mono- and bis-ethers based on oxyethyl phenol Neonole AF-9-12 have been synthesized under acid catalysis using condensation by adipic and azelaic acids. Mono-products are produced at the ratio of Neonole AF-9-12:dicarboxylic acid=1:1 with the yield of 80–83%, while bis-surface-active reagents are produced at the ratio of Neonole AF-9-12:dicarboxylic acid=2:1 with the yield of 70–80%. The colloidal-chemical properties of the synthesized reaction products have been studied. The products obtained exhibit a higher surface activity and detergent activity towards metal surfaces than the initial surface-active reagents. Our findings indicate the availability of the modified surface-active reagents both to create technical detergent compositions and to use them as emulsifiers and dispersants of carbohydrates.