Super-base-derived hypergolic ionic fuels with remarkably improved thermal stability

摘要: Two series of super-base-derived hypergolic ionic liquid materials were synthesized and fully characterized by 1H 13C NMR, IR spectroscopy, high resolution mass spectrometry (HRMS). Their physicochemical properties such as thermal properties, density, viscosity, heats formation, specific impulse, ignition delay time intensively or calculated. Among fourteen new organic materials, eleven salts are liquids at room temperature, which all exhibit good stability to heat expected upon contact with WFNA. The densities these compounds range from 1.00 1.22 g cm−3, their formation vary between −38.0 478.6 kJ mol−1. Surprisingly, most exhibited an unexpected >280 °C, in salt 1 gave the Td value 310 is superior those any known liquids. As a class fuels, novel have some unique advantages compared traditional propellant fuels like hydrazine its derivatives, including extremely low vapour pressure, short ID time, stability, etc., thereby demonstrating potential applications green bipropellant formulations.