Dissipation mechanisms in ionic liquids.
The spreading of ionic liquids on molecularly smooth solid surfaces has been little studied in the past. We show that the spreading behaviors of the two ionic liquids, [EMIM] ethyl sulfate and ECOENG 500, are well described by the combined molecular kinetic and hydrodynamic model of de Ruijter, de Coninck, and Oshanin [M.J. de Ruijter, J. de Coninck, G. Oshanin, Langmuir 15 (1999) 2209] with reasonable values for the molecular friction coefficient zeta, molecular displacement lambda, and frequency K0 associated with contact line motion, as well as reasonable values for the microscopic cutoff a associated with hydrodynamic dissipation.
Stalcup
Erik J
EJ
Department of Physics, Cardwell Hall, Kansas State University, Manhattan, KS 66506-2601, USA.
Seemann
Ralf
R
Herminghaus
Stephan
S
Law
Bruce M
BM
D007093:Imidazoles / Q000737:chemistry*; D052578:Ionic Liquids / Q000737:chemistry*; D007700:Kinetics; D015394:Molecular Structure; D011092:Polyethylene Glycols / Q000737:chemistry*; D013499:Surface Properties; D013816:Thermodynamics; D013997:Time Factors
D007093:Imidazoles; D052578:Ionic Liquids; D011092:Polyethylene Glycols; C518739:1-ethyl-3-methylimidazolium