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含硅氢键有机硅高聚物[HO—(—CH_3HSiO—)_nH]具有特别优越的防水性能,特别是对纺织纤维的处理则为其他有机硅化合物所不能比拟,我们在这方面进行了初步的探讨。合成含有硅氢键的有机硅高聚物的关键在于如何能得到含有硅氢键的单体,即甲基二氯硅烷(CH_3SiHCl_2),该单体是直接法合成甲基单体[(CH_3)_nSiCl_(4-n)]的副产物之一,得量为5％左右在操作过程中如通以氢气可提高得率约17％。另外以铝粉或氢化锂铝为触媒将甲基三氯硅烷(CH_3SiCl_3)进行氢化或者以三氯化铝为触媒将甲基硅甲烷(CH_3SiH_3)以氯化氢进行氯化等方法都可得到甲基二氯硅烷,我们采用了由硅氯仿作为中间体通过格林娜试剂来合成的。
The silicon-hydrogen-bonded silicone polymer [HO - (- CH_3HSiO -) _ nH] has particularly excellent water-repellent properties, especially for textile fibers that can not be compared with other organosilicon compounds. Discussion. The key to the synthesis of silicon-hydrogen-bonded silicone polymers is how to get the monomer containing silicon-hydrogen bonds, namely methyl dichlorosilane (CH_3SiHCl_2), which is the direct synthesis of methyl monomer [(CH_3) _nSiCl_ (4-n)] by-products, the amount of about 5% in the process of operation as hydrogen can be increased by about 17%. In addition to aluminum powder or lithium aluminum hydride as a catalyst to methyltrichlorosilane (CH_3SiCl_3) hydrogenation or aluminum chloride as a catalyst to methylsilane (CH_3SiH_3) with hydrogen chloride and other methods can be obtained methyldi Chlorosilanes, we used silica chloroform as an intermediate synthesized by Grignard reagents.