Production of polyhydrogen silsesquioxane


PURPOSE: To obtain a polydihydrogen silsesquioxane soluble in solvents, by dissolving trichlorosilane in a solvent saturated with water, and bubbling an inert gas containing steam in the solution. CONSTITUTION: Methyl isobutyl ketone is saturated with about 2 wt% water at 10°C, and trichlorosilane is added slowly to the solution to obtain a reaction liquid. An inert gas such as N 2 is passed through hot water of 50W70°C, and the resultant steam-containing inert gas is bubbled in the above reaction liquid containing trichlorosilane to effect the hydrolysis and the polycondensation of the trichlorosilane to the objective polydihydrogen silsesquioxane soluble in the solvents such as methyl isobutyl ketone. COPYRIGHT: (C)1985,JPO&Japio




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