ANTIBACTERIAL OLIGOETHOXY-(4-ORGANOCARBOXYPHENYLOXY)-TETRASILOXANES AND METHOD FOR THEIR PREPARING

摘要

FIELD: organic chemistry, chemical technology.;SUBSTANCE: invention relates to novel chemical compounds that can be used for protection of textile materials from biodamages, and to a method for their synthesis. Invention proposes antibacterial oligoethoxy-(4-organocarboxyphenyloxy)-tetrasiloxanes. These compounds are able to protect textile materials from biodamages and not to be washed off from surface of their fibers in multiple launderings and chemical cleansings. Invention proposes a method for synthesis of claimed oligoethoxy-(4-organocarboxyphenyloxy)-tetrasiloxanes by the condensation reaction of 1 g-mole of decaethoxytetrasiloxane with a desired amount of g-moles of the corresponding 4-organocarboxyphenol representing 4-hydroxybenzoic acid ester in the presence of catalytic amount of tetrachlorosilane at heating and stirring and with simultaneous distillation of formed ethyl alcohol.;EFFECT: improved method of synthesis.;3 cl, 1 dwg, 3 tbl, 7 ex