NN bonded polymers

摘要: The extreme reactivity of hydrazine and its derivatives with oxidizers such as $HNO_3$ or $N_20_4$, leading to spontaneous ignition, has been utilized in developing self-igniting (hypergolic) propellant systems. Hydrazine, monomethylhydrazine (MMH) unsymmetrical dimethylhydrazine (UDMH) have long used fuels biliquid rockets. For hybrid rocket propellants, solid which ignite spontaneously on coming into contact liquid are preferred order give the motor onoff capability. Here again, compounds N-N bonds conceived hypergolic fuels. Indeed, several these very short ignition delays (the elapsed time preceding after oxidizer fuel come contact), white red fuming nitric acid (WFNA RFNA) when powder form.