Доклады Академии наукДоклады Академии наук0869-5652The Russian Academy of Sciences1767810.31857/S0869-56524884383-385Research ArticlePolymers with regular alternation of 1,7-bis[(dimethyl)silylmethylene]-m-carborane and diorganosiloxane unitsIzmaylovB. A.mgaly@yandex.ruVasnevV. A.mgaly@yandex.ruMarkovaG. D.mgaly@yandex.ruInstitute of Organoelement Compounds of the Russian Academy of Sciences1010201948843833851011201910112019Copyright © 2019, Russian academy of sciences2019<p>New high-thermostable carboranylmethyl-containing diorganosiloxane polymers have been obtained by polycondensation of equimolar amounts of 1.7-bis[hydroxy(dimethyl)silylmethylene]-m-carborane with bis(dimethylamino)diorganosilanes. It was shown, that in the case of replacement of 24 to 33 mol. % of dimethylsiloxane units with methylphenylsiloxane or diphenylsiloxane units with bulk phenyl groups, only amorphous polymers are formed. The polymers are highly soluble in organic solvents and have high thermostability.</p>polycarboranylmethylendiorganosiloxanespolycondensationthermostabilitycrystallinityvulcanizationполикарборанилметилендиорганосилоксаныполиконденсациятермостойкостькристалличностьвулканизация[Grimes R.N. Carboranes. L.: Acad. Press. 3rd ed. 2016. P. 1058.][Андрианов К.А., Астапов Б.А. // ДАН СССР. 1976. Т. 227. № 6. С. 1357-1360.][Каlinin V.N., Izmaylov B.A., Каzantzev A.A., Myakushev V.D., Zhdanov A.A., Zakharkin L.I. // J. Organomet. Chem. 1981. V. 216. P. 295-320.][Izmaylov B.A., Vasnev V.A., Markova G.D. // Inorg. Chim. Acta. 2018. V. 471. P. 475-480. DOI: 10.1076/j.ica 2017.11.056]