FLUOROCARBOFUNCTIONAL SILSESQUIOXANES CONTAINING OTHER REACTIVE FUNCTIONAL GROUPS AND A METHOD TO OBTAIN THE SAME

摘要

This invention relates to new silsesquioxane derivatives, containing two functional group types having the general formula 1, [R¹(SiR³₂O)_m]_n[R²(SiR³₂O)_m]_8-n[(SiO_1.5)₈] wherein • R¹ denotes the group HCF₂(CF₂)_x(CH₂)_yO(CH₂)₃- or CF₃(CF₂)_ZCH₂CH₂-; • R² denotes the glycidoxypropyl, triethoxysilylethyl functional group: • R³ are equal and denote a methyl or phenyl group; • m - are equal and take the value 0 or 1, n=1-7, x=1-12, y=1-4, z=0-12. In its second aspect, this invention relates to a method to obtain new and conventional silsesquioxane derivatives having the general formula 1, by two-step hydrosilylation. A fluorinated olefin is hydrosilylated with hydridosilsesquioxane in the first step, followed by the second step where a functional olefin is hydrosilylated with a partly substituted hydridosilsesquioxane resulting from the first step, in the presence of conventional catalysts for hydrosilylation processes, specifically transition metal complexes.