Interaction of gluconate-based ionic liquids with common solvents: A study of volumetric, viscosity and conductivity properties

Abstract With the intensive research of ionic liquids, more and more shortcomings of ionic liquids have been gradually found. At the same time, more ionic liquids with specific or multifunctional properties need to be designed for their wide applications. Thereby, the research for seeking new families of functionalized ionic liquids has been a hot topic. In this paper, we firstly synthetized seven novel functionalized gluconate-based ionic liquids [C n mim][C 6 H 11 O 7 ] (GBILs, n  = 2, 4, 6, 8, 10, 12, and 14). Meanwhile, the volumetric, viscosity and conductivity properties for the GBIL + solvent (water/ethanol/propyl alcohol) systems were studied. The interactions between the ionic liquids and solvents were also explored. The results indicated that the interactions between the studied ILs and solvent depend on the structures of GBILs and the category of solvents.