论文部分内容阅读
探索了一种以四氢呋喃,二甲基二氯硅烷为主要原料制备δ-羟丁基二甲基硅氧烷齐 聚物的新方法.本法首先用四氢呋喃与氯化氢反应合成氯丁醇,其次与二甲基二氯硅烷反 应,再与金属镁反应生成(CH3)2SiCl[O一(CH2)4一MgCl],最后在盐酸中水解生成δ-羟丁基 二甲基硅氧烷齐聚物.主要考察了不同的二甲基二氯硅烷与氯丁醇的配比对产量的影响, 对目标产物进行了氢核磁共振分析;讨论了其基本结构,并对合成过程可能存在的化学反 应进行了详细探讨.
A novel method of preparing δ-hydroxybutyldimethylsiloxane oligomers using tetrahydrofuran and dimethyldichlorosilane as main raw materials was explored. In this method, chlorobutanol is firstly synthesized by the reaction of tetrahydrofuran and hydrogen chloride, and then reacted with dimethyldichlorosilane, and then reacted with magnesium metal to form (CH3) 2SiCl [O (CH 2) 4 -MgCl] δ-hydroxybutyldimethylsiloxane oligomers. The effects of the ratio of different dimethyldichlorosilane and chlorobutanol on the yield were investigated. The target products were analyzed by 1HNMR. The basic structure was discussed. The possible chemical reactions were also carried out Detailed discussion.