Study of Green Solvents 1-Butyl-3-Methy-Limidazolium Ionic Liquids´ Structure and Properties

Ionic Liquids(ILs) as one kind of green solvents was studied and applied more and more with the development of green chemistry, because of their unique physical and chemical properties. The intermediate 1-butyl-3-methylimidazolium bromide was synthesized from the materials of N-methylimidazolium and 1-butylbromide; 1-butyl-3-methylimidazolium terafluoroborate and hexafluorophosphate were synthesized with anion exchange reaction. the intermediate´s synthesis mechanism is nucleophilic substitution reaction. Structures of the three ionic liquids were indicated by FT-IR, 1HNMR and Computer Simulation. At last, the thermal properties, conductivity and dissolved performance of the Ionic Liquids were investigated. The results of this work could provide meaningful insights in the understanding of the use of imidazoled ILs.