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8582748 
Journal Article 
Synthesis and Properties of Organic Diamino Salts of 4H, 8H-Difurazano [3, 4-b: 3', 4'-e]pyrazine (DFP) 
Duan, BH; Liu, N; Wang, BZ; Lu, XM; Zhang, Q; Mo, HC 
2021 
1 
Huozhayao Xuebao / Chinese Journal of Explosives and Propellants
ISSN: 1007-7812 
44 
2 
154-160 
Chinese 
To solve the acidity of 4H, 8H-difurazano[3, 4-b: 3', 4'-e]pyrazine (DFP), seven organic diamino salts of DFP were synthesized with the cations as aminoguanidine (DAGDFP), semicarbazide (DSDFP), 1, 3-diaminoguanidine (DBAGDFP), guanyl urea (DGUDFP), guanidine (DGDFP), biguanide (DBGDFP) and triaminoguanidine (DTAGDFP) using DFP and organic amines as starting materials. The structures of target compounds were confirmed by 1H NMR, 13C NMR, IR, and elemental analysis. The thermal behaviors of these compounds were studied by DSC and TG methods, and the mechanical sensitivities were tested according to the standard BAM method. The detonation parameters and the monopropellant performances were calculated by Kamlet-Jacobs equations and the minimum free energy method, respectively. The results show that the target compounds exhibit good thermal stability, and are insensitive energetic ionic salts with impact sensitivity higher than 40J and friction sensitivity greater than 360N. DSDFP displays better detonation performance than TNT and higher specific impulse than guanidinium azotetrazolate (GZT) with decomposition peak temperature of 273.4℃, detonation velocity of 7891m/s, detonation pressure of 30.11GPa, specific impulse of 2352N•s/kg and characteristic velocity of 1462.9m/s. It is expected to be applied in gas generator and solid propellant. © 2021, Editorial Board of Journal of Explosives & Propellants. All right reserved. 
Detonation performance; Energetic ionic salt; Organic chemistry; Organic diamino salts of DFP; Specific impulse; Thermal performance