Melting Behavior of Pyrrolidinium-Based Ionic Liquids and Their Binary Mixtures

Citations Over TimeTop 10% of 2010 papers

Abstract

To understand the low-temperature behavior of pyrrolidinium-based ionic liquids (ILs), ILs, including N-butyl-N-methyl pyrrolidinium (Pyr14+) and N-methyl-N-propyl pyrrolidinium (Pyr13+) cations and bis(fluorosulfonyl)imide (FSI−), bis(trifluoromethanesulfonyl)imide (TFSI−), bis(pentafluoroethanesulfonyl)imide (BETI−), and (trifluoromethanesulfonyl)(nonafluorobutyl-sulfonyl) imide (IM14−) anions, were investigated. Pyr14FSI, Pyr13FSI, Pyr14TFSI, Pyr13TFSI, Pyr14BETI, Pyr13BETI, Pyr14IM14, and Pyr13IM14 were prepared and intensively studied by means of differential scanning calorimetry (DSC). Four of these ILs (Pyr14FSI, Pyr13FSI, Pyr14TFSI, Pyr13TFSI) were used to prepare binary mixtures, which were examined by DSC measurements. For these mixtures, reduced melting transitions and an enhanced liquidus range were detected, which represents a great advantage for low-temperature applications. In addition, it was observed that the crystallization process of the mixtures is mainly influenced by the anion.

Related Papers

• → Liquid Structure of Room-Temperature Ionic Liquid, 1-Ethyl-3-methylimidazolium Bis-(trifluoromethanesulfonyl) Imide(2008)174 cited
• → Equilibrium liquidus temperatures of binary mixtures from differential scanning calorimetry(2007)68 cited
• → Determination of the in-rich peritectic region in the in-Sn system by differential scanning calorimetry(1995)2 cited
• → Ionic conductivities of 1-(2-methoxyethyl)-3-methylimidazolium bis(trifluoromethylsulfonyl)imide(2016)
• → Ionic conductivities of 1-(2-(2-methoxyethoxy)ethyl)-3-methylimidazolium bis(trifluoromethylsulfonyl)imide(2016)