Dicationic imidazolium based ionic liquids: Synthesis and properties

Khan, A.S. and Man, Z. and Arvina, A. and Bustam, M.A. and Nasrullah, A. and Ullah, Z. and Sarwono, A. and Muhammad, N. (2017) Dicationic imidazolium based ionic liquids: Synthesis and properties. Journal of Molecular Liquids, 227. pp. 98-105.

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Abstract

In the present work, four dicationic ionic liquids (DILs) having 1,1-Bis(3-methylimidazolium-1-yl) butylene (C4(Mim)2) cation with counter anions namely hydrogensulfate, methanesulfonate, trifluoromethanesulfonate, and paratoluene sulfonate were synthesized and characterized. The structures of ILs were confirmed by 1H NMR, 13C and elemental analysis (CHNS). The effect of temperature and anion type on thermophysical properties such as refractive index, density and viscosity were studied. Density and viscosity values were measured within the temperature range of 293.15–273.15 K. Moreover, thermal expansion coefficient, molecular volume, molar volume, free volume, standard entropy, and lattice energy were derived from the density and viscosity values. Viscosity values were used for calculation of activation energy using the Arrhenius equation. Refractive index values were measured in the temperature range of 293.15–323.15 K and the values of refractive index were used further to estimate the electronic polarizability using Lorenz-Lorentz equation. Thermal properties of the synthesized DILs were determined using thermogravimetric analyzer (TGA) and differential scanning calorimetry (DSC). © 2016 Elsevier B.V.

Item Type: Article
Impact Factor: cited By 4
Departments / MOR / COE: Division > Academic > Faculty of Engineering > Chemical Engineering
Depositing User: Mr Ahmad Suhairi Mohamed Lazim
Date Deposited: 20 Apr 2018 07:20
Last Modified: 20 Apr 2018 07:20
URI: http://scholars.utp.edu.my/id/eprint/19637

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