POLY-(PERELUOROALKYL(ALKOXY)PHENYL)-METHYLSILOXANE- '-DIOLS AND METHOD OF PRODUCING SAME

The present invetion relates to poly-{perfluoroalkyl--(alkoxy)phenyl!methylsiloxane}-.alpha.,.omega.-d iols of the general formual: (I) where: RF = OCF3, OC2F5, OC2F4OCF3, C2F4OCF3, C3F7, R = CH3, C6H5, x = 1.0 - 0.97, y = 0 - 0.03, m = 2.3 - 187.2, n = 0 - 3.8 with an average molecular weight of 620 - 51.200. The invention also relates to a method of producing said compounds of the general formula (I) residing in that hydrolysis is performed of perfluoroalkyl(alkoxy)phenyl methldichlorosilanes of the general formula (II) where: RF = OCF3, OC2F5, OC2F4OCF3, C2F4OCF3, C3F7 or of a mixture of said compounds of the general formula (II) with methyl(phenyl)vinyldichlorosilanes of the general formula (III) where: R = CH3, C6H5 with a mole ratio of the compounds of the general formula(II) to those of the general formula (III) equal to 1 - 0.97: : 0 - 0.03, respectively, in the presence of an acceptor of hydrogen chloride liberating during hydrolysis, said hydrolysis being performed at a temperature of 0 - 25.degree.C. The proposed poly-{perfluoroalkyl(alkoxy)phenyl!methylsiloxane}-.alpha., .omega.-diols can be used for manufacturing sealants, compounds, and rubbers possessing high thermostability, frost-, benzine and oil- resistance. The proposed method ensures high yield(up to 97% of theory) of the desired products. The present invetion relates to poly-{¢perfluoroalkyl--(alkoxy)phenyl!methylsiloxane}-.alpha.,.omega.-diols of the general formual: (I) where: RF = OCF3, OC2F5, OC2F4OCF3, C2F4OCF3, C3F7, R = CH3, C6H5, x = 1.0 - 0.97, y = 0 - 0.03, m = 2.3 - 187.2, n = 0 - 3.8 with an average molecular weight of 620 - 51.200. The invention also relates to a method of producing said compounds of the general formula (I) residing in that hydrolysis is performed of perfluoroalkyl(alkoxy)phenyl methldichlorosilanes of the general formula (II) where: RF = OCF3, OC2F5, OC2F4OCF3, C2F4OCF3, C3F7 or of a mixture of said compounds of the general formula (II) with methyl(phenyl)vinyldichlorosilanes of the general formula (III) where: R = CH3, C6H5 with a mole ratio of the compounds of the general formula(II) to those of the general formula (III) equal to 1 - 0.97: : 0 - 0.03, respectively, in the presence of an acceptor of hydrogen chloride liberating during hydrolysis, said hydrolysis being performed at a temperature of 0 - 25.degree.C. The proposed poly-{¢perfluoroalkyl(alkoxy)phenyl!methylsiloxane}-.alpha., .omega.-diols can be used for manufacturing sealants, compounds, an