Synthesis and Spectroscopic Characterization of Protic Tris(2-Hydroxyethyl)-Ammonium Ionic Liquids

Protic ionic liquids (PILs) having tris(2-hydroxyethyl)ammonium (or triethanolammonium) as cations and methacrylate, dihydrogenborate, formate, and acetate as anions have been synthesized through stoichiometric neutralization reaction. PILs have been characterized by elemental analyses, FTIR,1H and13C NMR spectroscopic methods. The viscosity of PIL4 was measured using a cone-and-plate viscometer at ambient temperature. The viscosity value indicates that the fluidity of PIL4 is 829 cP (the viscosity of water is 0.7977 cP at 30 °C). © 2019, Turkish Chemical Society. All rights reserved.