| abstract |
FIELD: chemistry. n SUBSTANCE: claimed is method for obtaining polyorganosilsesquioxane-polydiogranosiloxane block-copolymers by co-hydrolysis of polydiorganosiloxane with organotrichlorsilane in presence of compound of amine type, selected from pyridine and urea, in medium of organic solvent with the following condensation of formed hydrolysate in presence of alkali metal hydroxide and extraction of target product. n EFFECT: method makes it possible to obtain filled vulcanisates of hot hardening, which have good physical-mechanical indices, from available raw material. n 3 cl, 1 tbl, 7 ex |