Investigation of the Ionic Liquids’ Potential as Probable Alternatives for Common Plasticizers inPropellans

Considering the role of plasticizers in the processability of solidpropellants, recentlymany researcheshave been carried out on the development and investigation of the role of these plasticizersonthe improvement of the propellants’ properties. These compounds are used in the formulation of double base and composite propellants to improve processability during propellantpreparation and thus to improve the mechanical properties of propellant. Energetic plasticizers, in addition to improving mechanical properties, increase energy and improve the explosive performance of the propellant. Although a lot of studies have been carried out in the field of plasticizers in recent years, but due to the complex structure of solid propellantsand the various mechanismsofplasticization, the need to design new plasticizers with high energy and the ability to interact with various polymeric structuresof propellantis tangible. Recently, ionic liquids and energeticionicliquids have been studied for this purpose. Ionic liquids with good properties such as structural designability, low vapor pressure, miscibility with various compounds, and the ability to make covalent bond with polymer, have the requirementsas desirable alternatives forcommonplasticizers.