1-丁基-3-甲基咪唑六氟磷酸盐离子液体合成与表征  

Synthesis and Characterization of Ionic Liquids 1-Butyl-3-Methylimidazolium Hexafluorophosphate

作　　者：张德超[1] 张丽鹏[1] 于先进[1] 陈恩泽[1] 董涛[1] 李恒[1] 

机构地区：[1]山东理工大学化学工程学院,山东淄博255091

出　　处：《化工时刊》2012年第2期5-8,17,共5页Chemical Industry Times

基　　金：国家自然科学基金(51054003);山东省自然科学基金(Y2007F60);山东省高等学校科技计划项目(J09LB59)

摘　　要：采用两步法和微波辅助法合成1-丁基-3-甲基咪唑六氟磷酸盐离子液体([Bmim]PF6),研究时间、温度、配比、溶剂种类对中间体[Bmim]Br和[Bmim]PF6产率的影响,离子液体([Bmim]PF6)的结构采用红外和核磁进行表征。实验结果 1表明:反应时间为24 h、温度为70℃、反应物质的量比为1∶1.1时,中间体[Bmim]Br产率可达到92.31%,25℃下中间体[Bmim]Br和KPF6等物质的量反应24 h,[Bmim]PF6离子液体产率为68.94%;利用微波间歇加热辅助合成[Bmim]Br产率高达96.62%,[Bmim]PF6产率为73.52%。Ionic liquids 1 - butyl - 3 - methylimidazolium hexafluorophosphate （ [ Bmim] PF6） were synthesized by the two - steps method and microwave - assisted. The factors affecting the product yield of [ Bmim ] Br and [ Bmim]PF6 such as time of synthesis, temperature, the ratio of reactants, solvents have been studied. The target product of [ Bmim ] PF6 was characterized by infrared spectra and proton nuclear magnetic resonance. The results showed that the reactive time 24 h, temperatrue 70 ~C, the molar ratio of reactants 1 ： 1.1, the yield of intermediate [ Bmim ] Br was 92.31%. Then equimolar potassium hexafluorophosphate was added and the 25~C, the yield of ionic liquid [ Bmim] PF6 is about 68.94%. The yield of [ Bmim] Br and 96.62% and 73.52% assist with intermittent mieroware. reaction time was 24h at [ Bmim] PF6 could reach

关 键 词：离子液体 [Bmim]PF6 正交实验微波合成 

分 类 号：TQ252.3[化学工程—有机化工]