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在制备硅有机高分子化合物时,不論原料采用二烃基二氯硅烷或二烃基二乙氧基硅烷,均常先經过水解成为二烃基二羟基硅烷后,才进行縮合而成为高分子化合物。因此研究二烃基二羟基硅烷的制备方法,无論在理論研究上及应用上,都有相当大的意义。二烃基二羟基硅烷类化合物中,二苯基二羟基硅烷最为稳定,被制备最早;二乙基二羟基硅烷于1946年为Sommers等制出;至于二甲基二羟基硅烷,过去一向被认为性貭过于活泼而难单独分离出来,至1953年Hyde及Kantor始报导其制备方法:Hyde将二甲基二乙氧基硅烷在石英器皿中經长时間(約48小时)的水解,得二甲基二羟基硅烷(粗产品产率92%),Kantor从二甲基二甲氧基硅烷出发,加热水解而得同样产物(产率65—78%)。1954年Fukukawa等,将二甲基二氯硅烷用中性緩冲溶液水解,亦得二甲基二羟基硅烷(产率約50%)。
In the preparation of silicon organic polymer compounds, regardless of the raw material using dihydrochloride or dihydrocarbyl diethoxysilane, are often first hydrolyzed into dihydrocarbyl dihydroxy silane, before condensation to become a polymer compound. Therefore, research on the preparation of dihydrocarbyl dihydroxysilane has great significance both in theory and application. Among the dihydrocarbyldihydroxysilanes, diphenyldihydroxysilanes were the most stable and were the first ones to be prepared. Diethyldihydroxysilanes were produced by Sommers et al. In 1946. As for dimethyldihydroxysilanes, diphobis貭 too lively and difficult to separate alone, until 1953 Hyde and Kantor reported the preparation of its first generation: Hyde will dimethyl diethoxy silane in quartz ware in a long period of time (about 48 hours) of hydrolysis, in the dimethyl Base dihydroxy silane (crude product yield 92%), Kantor starting from dimethyldimethoxysilane and hydrolyzed to give the same product (65-78% yield). 1954 Fukukawa, etc., will dimethyldichlorosilane hydrolysis with a neutral buffer solution, also have dimethyldihydroxysilane (yield of about 50%).