天津科技大学学报Issue(5)：42-47,6.DOI:10.13364/j.issn.1672-6510.2014.05.009
离子液体[Bmim]Br和[Bmim]PF6的合成及其物化性质研究
Synthesis and Physicochemical Properties of Ionic Liquids [Bmim]Br and [Bmim]PF6
摘要
Abstract
Ionic liquids 1-butyl-3-methylimidazolium bromide([Bmim]Br)and 1-butyl-3-methylimidazolium hexafluoro-phosphate([Bmim]PF6)were synthesized by using ultrasonic-assisted method. The factors affecting the productivity of [Bmim]Br including reaction time,frequency,the mole ratio of reactants as well as the productivity of [Bmim]PF6,including reacting time and mass ratio of solvent to [Bmim]Br were systematically investigated. The results show that the yield of [Bmim]Br was 98.88% under the optimal synthetic conditions of reaction time of 50,min,frequency 20,Hz and mole ratio 1.1,and the yield of [Bmim]PF6,was 86.54% with reaction time of 50,min,frequency 20,Hz and mass ratio of solvent to [Bmim]Br 1.5. In addition,the structure of [Bmim]Br was characterized by infrared spectra,UV absorption spectra,and NMR spectra;[Bmim]PF6,was characterized by infrared spectra and UV absorption spectra with antithesis. The contents of water and its corresponding physicochemical properties including density and refractive index between 10,℃and 30,℃were also measured.关键词
超声波/离子液体/1-丁基-3-甲基咪唑六氟磷酸盐/密度/折光率Key words
ultrasonic/ionic liquid/1-butyl-3-methyl-imidazolium hexafluorophosphate/density/refractive index分类
化学化工引用本文复制引用
张楠,邓天龙,刘明明,高道林..离子液体[Bmim]Br和[Bmim]PF6的合成及其物化性质研究[J].天津科技大学学报,2014,(5):42-47,6.基金项目
国家自然科学基金资助项目(21276194) （21276194）
