posted on 2013-11-27, 00:00authored byMert 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.