硅酸三(氯乙基)苄酯的合成及表征  

Synthesis and Characterization of Benzyl Trichloroethyl Silicate

作　　者：王彦林[1] 刁建高[1] 纪孝熹[1] 杨兴[1] 

机构地区：[1]苏州科技学院化学与生物工程学院,江苏苏州215009

出　　处：《精细化工》2011年第8期800-802,共3页Fine Chemicals

摘　　要：以四氯化硅、苯甲醇和环氧乙烷为原料,合成一种硅卤协同阻燃增塑剂硅酸三(氯乙基)苄酯。探讨了反应时间、反应温度以及反应物摩尔比等对产率的影响,筛选出最佳的工艺条件为:n(四氯化硅)∶n(苯甲醇)=1∶1,n(四氯化硅)∶n(环氧乙烷)=1∶3.2,反应温度40℃,反应时间2 h,在该条件下产率为98%。采用FTIR、1HNMR、极限氧指数表征了硅酸三(氯乙基)苄酯的分子结构及性能。Benzyl trichloroethyl silicate,a silicon-halogen synergistic flame retardant plasticizer,was synthesized by using silicon tetrachloride,benzyl alcohol and ethylene oxide as raw materials.The effect of reaction time,temperature and mole ratio of substance on the product yield was discussed.The optimal conditions for preparation were ascertained as follows：n（silicon tetrachloride）∶n（benzyl alcohol）=1∶1,n（silicon tetrachloride）∶n（ethylene oxide）=1∶3.2,reaction time 2 h,reaction temperature 30 ℃.Under these conditions,the percentage of product yield could reach 98%.The molecular structures of benzyl trichloroethyl silicate and its related performance measurement were determined by means of FTIR,1HNMR and LOI technique.

关 键 词：四氯化硅 苯甲醇 环氧乙烷 阻燃增塑剂 

分 类 号：TQ314.248[化学工程—高聚物工业]