Ether-functionalized imidazolium hexafluorophosphate ionic liquids for improved water miscibilities

被引：55
作者：
Schrekker, Henri S.
Stracke, Marcelo P.
Schrekker, Clarissa M. L.
Dupont, Jairton
机构：
[1] Univ Fed Rio Grande do Sul, Inst Chem, Lab Mol Catalysis, BR-91501970 Porto Alegre, RS, Brazil
[2] Univ Fed Rio Grande do Sul, Inst Chem, Lab Technol Proc & Catalysis, BR-91501970 Porto Alegre, RS, Brazil
来源：
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2007年 / 46卷 / 22期
关键词：
D O I：
10.1021/ie0709685
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The hexafluorophosphate anion of 1-alkyl-3-methylimidazolium ionic liquids is responsible for their poor water miscibility. Transformation of the hexafluorophosphate ionic liquids into water miscible liquids by structural modifications in the imidazolium cation could result in new applications. Improved water miscibilities were achieved with I-alkyl ether-3-methylimidazolium hexafluorophosphate ionic liquids. Especially, ionic liquid I-triethylene glycol monomethyl ether-3-methylimidazolium hexafluorophosphate 5 showed a strongly increased water miscibility range, at 30 degrees C, which was further enhanced in the presence of ethanol as cosolvent. Besides, a complete water miscibility of 5 was observed at an elevated temperature of 50 degrees C. This knowledge may facilitate the predictive development of new task-specific ionic liquids.
引用
收藏
页码：7389 / 7392
页数：4
相关论文
共 45 条
[1]   Some novel liquid partitioning systems: Water-ionic liquids and aqueous biphasic systems [J].
Abraham, MH ;
Zissimos, AM ;
Huddleston, JG ;
Willauer, HD ;
Rogers, RD ;
Acree, WE .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2003, 42 (03) :413-418
[2]   Electrospray ionization mass spectrometry of ionic liquids and determination of their solubility in water [J].
Alfassi, ZB ;
Huie, RE ;
Milman, BL ;
Neta, P .
ANALYTICAL AND BIOANALYTICAL CHEMISTRY, 2003, 377 (01) :159-164
[3]   Solution thermodynamics of imidazolium-based ionic liquids and water [J].
Anthony, JL ;
Maginn, EJ ;
Brennecke, JF .
JOURNAL OF PHYSICAL CHEMISTRY B, 2001, 105 (44) :10942-10949
[4]   Nanoparticles as recyclable catalysts: The frontier between homogeneous and heterogeneous catalysis [J].
Astruc, D ;
Lu, F ;
Aranzaes, JR .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2005, 44 (48) :7852-7872
[5]  
Astruc D., 2005, ANGEW CHEM, V117, P8062, DOI DOI 10.1002/ange.200500766
[6]   Enhanced CO2 separation selectivity in oligo(ethylene glycol) functionalized room-temperature ionic liquids [J].
Bara, Jason E. ;
Gabriel, Christopher J. ;
Lessmann, Sonja ;
Carlisle, Trevor K. ;
Finotello, Alexia ;
Gin, Douglas L. ;
Noble, Richard D. .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2007, 46 (16) :5380-5386
[7]   Hydrophobic, highly conductive ambient-temperature molten salts [J].
Bonhote, P ;
Dias, AP ;
Papageorgiou, N ;
Kalyanasundaram, K ;
Gratzel, M .
INORGANIC CHEMISTRY, 1996, 35 (05) :1168-1178
[8]  
Branco LC, 2002, CHEM-EUR J, V8, P3671, DOI 10.1002/1521-3765(20020816)8:16<3671::AID-CHEM3671>3.0.CO
[9]  
2-9
[10]  
Cammarata L, 2001, PHYS CHEM CHEM PHYS, V3, P5192, DOI 10.1039/b106900d
12345