Journal ArticleDOI
Thermophysical Properties of Imidazolium-Based Ionic Liquids
Christopher P. Fredlake,Jacob M. Crosthwaite,Daniel G. Hert,and Sudhir N. V. K. Aki,Joan F. Brennecke +4 more
TLDR
In this paper, the authors present density as a function of temperature, melting temperatures, glass transition temperatures, decomposition temperatures, and heat capacities for 13 ionic liquids, including 1-butyl-3-methylimidazolium trifluoromethanesulfonate.Abstract:
Ionic liquids (ILs) are salts that are liquid at low temperatures, usually including the region around room temperature. They are under intense investigation, especially as replacement solvents for reactions and separations, since they exhibit negligible vapor pressure and would not, therefore, contribute to air pollution. Clearly, basic thermophysical properties are vital for design and evaluation for these applications. We present density as a function of temperature, melting temperatures, glass-transition temperatures, decomposition temperatures, and heat capacities as a function of temperature for a series of 13 of the popular imidazolium-based ILs. The ionic liquids investigated here are 1-butyl-3-methylimidazolium tetrafluoroborate, 1-butyl-3-methylimidazolium hexafluorophosphate, 1-butyl-3-methylimidazolium chloride, 1-butyl-3-methylimidazolium bromide, 1-butyl-3-methylimidazolium dicyanamide, 1-butyl-3-methylimidazolium trifluoromethanesulfonate, 1-butyl-3-methylimidazolium tris(trifluoromethylsul...read more
Citations
More filters
Journal ArticleDOI
Phase diagrams of binary systems containing tricyanomethanide-based ionic liquids and thiophene or pyridine-New experimental data and PC-SAFT modelling
Elena Vadimovna Lukoshko,Elena Vadimovna Lukoshko,Fabrice Mutelet,Kamil Paduszyński,Urszula Domańska,Urszula Domańska +5 more
TL;DR: In this article, perturbed-chain statistical associating fluid theory (PC-SAFT) was used to model the properties of binary systems composed of tricyanomethanide-based ionic liquids and thiophene or pyridine.
Journal ArticleDOI
Synthesis and bio-physicochemical properties of amide-functionalized N-methylpiperazinium surfactants.
TL;DR: Four new amide functionalized N-methylpiperazinium amphiphiles having tetradecyl, hexadecyl alkyl chain lengths and counterions; chloride or bromide have been synthesized and characterized by various spectroscopic techniques, indicating that micellization is exothermic and entropy-driven.
Journal ArticleDOI
Nucleation and growth of microdroplets of ionic liquids deposited by physical vapor method onto different surfaces
TL;DR: In this article, the authors explored the deposition process of ionic liquids (ILs) droplets as precursors for the fabrication of thin films, by means of physical vapor deposition (PVD).
Journal ArticleDOI
Preparation of Polymeric Membranes and Microcapsules Using an Ionic Liquid as Morphology Control Additive
D. Shanthana Lakshmi,Teresa Cundari,Emilia Furia,Antonio Tagarelli,Giulia Fiorani,Mauro Carraro,Alberto Figoli +6 more
TL;DR: In this article, the ionic liquid (IL) 1-butyl-3-methylimidazolium hexafluorophosphate (BMIM][PF6]) was added to the PVPK17 pore former, resulting in different morphologies of the materials.
Journal ArticleDOI
Selection of a suitable ZIF-8/ionic liquid (IL) based composite for selective CO2 capture: the role of anions at the interface
TL;DR: In this article, the effect of encapsulation of ionic liquids (ILs) into the pores of ZIF-8 for selective CO2 capture and separation was analyzed, and it was shown that the CO2 selectivity of these composite materials depends on the anion of the IL and thus through the selection of a suitable anion we can significantly enhance the CO 2 selectivity for different flue gas mixtures.
References
More filters
Journal ArticleDOI
Ionic Liquids-New "Solutions" for Transition Metal Catalysis.
Peter Wasserscheid,Wilhelm Keim +1 more
TL;DR: There are indications that switching from a normal organic solvent to an ionic liquid can lead to novel and unusual chemical reactivity, which opens up a wide field for future investigations into this new class of solvents in catalytic applications.
Journal ArticleDOI
Hydrophobic, Highly Conductive Ambient-Temperature Molten Salts
Pierre Bonhote,Ana-Paula Dias,Nicholas Papageorgiou,Kuppuswamy Kalyanasundaram,Michael Grätzel +4 more
TL;DR: New, hydrophobic ionic liquids with low melting points (<−30 °C to ambient temperature) have been synthesized and investigated, based on 1,3-dialkyl imidazolium cations and hydrophilic anions and thus water-soluble.
Journal ArticleDOI
Characterization and comparison of hydrophilic and hydrophobic room temperature ionic liquids incorporating the imidazolium cation
Jonathan G. Huddleston,Ann E. Visser,W. Matthew Reichert,Heather D. Willauer,Grant A. Broker,Robin D. Rogers +5 more
TL;DR: A series of hydrophilic and hydrophobic 1-alkyl-3-methylimidazolium room temperature ionic liquids (RTILs) have been prepared and characterized to determine how water content, density, viscosity, surface tension, melting point, and thermal stability are affected by changes in alkyl chain length and anion.
Journal ArticleDOI
Molecular states of water in room temperature ionic liquids
TL;DR: In this paper, the authors used ATR and transmission IR spectroscopy to investigate the state of water in room temperature ionic liquids (RTILs) based on the 1-alkyl-3-methylimidazolium cation with the anions.