Untitled

Ionic Conductivity and Viscosity of Solvate Ionic Liquids Composed of Glymes and Excess Lithium Bis(Trifluoromethylsulfonyl)Amide

“…In the case of LiTFSAglyme solution (X LiTFSA < 50.0 mol%), Broullette and co-workers have pointed out that the dependence of the ionic conductivity of the electrolyte on the concentration of LiTFSA is able to be explained by the empirical Casteel-Amis equation in the X LiTFSA range from 0 to 40 mol%. 23 However, the ionic conductivity of the solvate ionic liquids at X LiTFSA ² 50.0 mol% deviated from the reported relation, presumably reflecting the difference in the Li(I) species in the electrolyte solution and the solvate ionic liquids.…”

On permittivity and density of the systems (tetraglyme+dimethyl or diethyl carbonate) and the formulation of Δε in terms of volume or mole fraction

“…While the presence of the large and complicated carbonate group in organic carbonate systems makes them an interesting research tool for analysing the applicability of group contribution models [11], they also offer a large variety of applications in industrial processes such as gasoline additives [12,13] and solvents for paint industries [14]. Likewise, the glymes or n(ethylene glycol) dimethyl ethers (nEG-DME), which have the chemical structure CH 3 O(CH 2 -CH 2 O) n CH 3 , are particularly interesting, since they are electrochemically stable, analogous to the poly-(ethylene oxide)s used in polymer-electrolyte batteries, and are employed as absorbents in the investigations of a new working fluid for use in absorption heat pumping systems [15][16][17]. Furthermore, in recent years, new lubricant-refrigerant working fluids based on complex molecules involving carbonate groups [18,19] and a synthetic polyalkylene glycol-type [20][21][22][23][24] (or glymes) have been proposed as candidates for refrigeration compressors on account of their better thermal stability, lubricity and miscibility with HFCs.…”

On permittivity and density of the systems {triglyme+(dimethyl or diethyl carbonate)} and formulation of Δε in terms of volume or mole fraction

“…In this work, experimental relative permittivity, e, at a frequency of 1 MHz, and density on mixing, q, of the binary mixtures {2, 5,8,11, tetraoxadodecane or triglyme + dimethyl (DMC) or diethyl carbonate (DEC)} from T = (288.15 to 328.15) K and atmospheric pressure were carried out.…”