A branched tetrasiloxane is prepared by preforming a liquid mixture of a disiloxane compound, an alcohol and an acid catalyst, adding a trialkoxysilane compound to the mixture for reaction, and adding water to the reaction mixture for co-hydrolysis, thereby forming a branched tetrasiloxane. The method is capable of preparing a branched tetrasiloxane, especially methyltris(trimethylsiloxy)silane having a sufficiently high purity to use as cosmetic oil in good yields.
通过将一个二
硅氧烷化合物、一种醇和一种酸催化剂混合成液体,加入一种三烷氧基
硅烷化合物进行反应,并向反应混合物中加入
水进行共
水解,从而形成分支四
硅氧烷。该方法能够制备出高纯度的分支四
硅氧烷,特别是甲基三(三甲基
硅氧基)
硅烷,可用作化妆品油,并且产率较高。