Biocidal properties investigation of the new guanidine-containing alkoxysilanes and siloxanes and epoxy materials modified by them

Abstract

This article presents a synthesis of stable guanidine-containing alkoxysilyl derivatives based on the synthesis procedure through amino derivatives and ylide of thiourea suggested previously. Amino- and mercapto-containing siloxane oligomers were synthesized by hydrolytic co-condensation based on the silanes thus obtained, and the biocidal activity of their aqueous solutions in comparison with the starting monomers was studied. The prospects of using the resulting compounds as biocidal additives to epoxy compositions and a high biocidal activity at their small concentrations in the cured material against S. aureus, E. coli, and C. albicans strains were demonstrated.