Due to unique physical and chemical features, ionic liquids (ILs) are widely employed in catalysis, organic synthesis, and electrochemistry. Designing Energetic Ionic Liquids (EILs) as energetic materials have provided a unique architectural platform for developing new-generation liquid energetic materials. The need for safer and greener high-performance explosives and propellants has led to renewed efforts to revisit these intriguing low-melting energetic salts and a growing awareness of their tremendous potential as new materials, particularly propellant fuels. Mettler Toledo's Flash Differential Scanning Calorimetry 2+ is used in this study to analyze an imidazolium-based ionic liquid containing butyl and ethyl groups and a fixed cation of dicyanamide anion. On heating as a function of cooling rate, the limiting fictive temperature Tf′, identical to the glass transition temperature Tg, is measured. At Tg, the EILs' dynamic fragility and activation energy are measured. The results of this study can be used to anticipate the thermophysical properties of similar ILs and offer the essential foundation for the design and selection of suitable processing procedures. Understanding of structure-property-performance correlations for EILs and comparable materials (e.g., deep eutectic solvents or DES) will be enhanced through this research.
