American Chemical Society
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Viscous Behavior of Imidazolium-Based Ionic Liquids

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journal contribution
posted on 2013-11-27, 00:00 authored by Mert Atilhan, Johan Jacquemin, David Rooney, Majeda Khraisheh, Santiago Aparicio
The viscosity of four imidazolium-based ionic liquids is analyzed as a function of pressure and temperature. Experimental measurements were carried out using an electromagnetic moving piston viscometer in the 303–353 K and 0.1–70 MPa ranges on synthesized ultrapure samples, and compared with available literature data. Molecular dynamics simulations were used to analyze the fluids’ dynamic properties from a nanoscopic viewpoint, with special attention paid to self-diffusion coefficients and dynamic viscosity. Simulated properties are in excellent agreement with experimental results in spite of the glasslike dynamics of some of the studied fluids.