National Institute of Advanced Industrial Science and Technology

Masayasu Igarashi

Kazuhiko Sato

Shigeru Shimada

Tomohiro Matsumoto

Fujio Yagihashi

Takeshi Nozawa

The present invention provides a method for producing a silanol compound capable of efficiently producing a silanol compound. The method for producing a silanol compound includes a proton exchange step of forming a silanol compound having a structure represented by following formula (c) by reacting a silicate having a structure represented by following formula (a) with an acidic compound having an acid dissociation constant pKof −1 to 20 in dimethyl sulfoxide (DMSO). (In formula (a), Qrepresents an i-valent cation and i represents an integer of 1 to 4).

Silanol compound and method for producing silanol compound

The purpose of the present invention is to provide silanol compounds that can be used as raw materials of siloxane compounds and the like, and a composition of the silanol compounds, as well as to provide a production method that makes it possible to produce silanol compounds at excellent yield. A composition comprising 5 mass % to 100 mass % of a silanol compound represented by Formulas (A) to (C) can be prepared by devising to produce silanol compounds under water-free conditions, to produce silanol compounds in a solvent having the effect of suppressing the condensation of silanol compounds, and to perform other such processes, the composition being able to be used as a raw material or the like of siloxane compounds because the silanol compounds can be stably present in the resulting composition. 

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Ibaraki, Japan

Masayasu Igarashi