Improvement Of The Synthetically Process Of 4, 4′-dichloro-2, 2′, 3,3′, 5, 5′, 6, 6′-octanitroazobenzene(DCONAB) And Study Of The Derivative Of DCONAB

4, 4′-dichloro-2, 2′, 3, 3′, 5, 5′, 6, 6′-octanitroazobenzene（DCONAB） was synthesized innovatively via nitration, amination and diazotization using 4-chlorobenzoic acid, etc as materials. Single factor experiments were carried out to find out the optimum synthesis-conditions parameters. The optimum synthesis-conditions of 4-chlorobenzoic acid were: n（4-chlorobenzoic acid）:n（NaNO₃）=1:10. The optimal synthesis process of4-Chloro-3,5-dinitroaniline was studied by single factor and orthogonal experiment. The optimum synthesis-conditions were that reaction temperature was 40℃, reaction time was 4.5h and n（4-Chloro-3, 5-dinitrobenzoic acid） : n（NaN3）=1:1.5. Single factor and orthogonal experiment showed that the optimum synthesis-conditions of DCONAB were that reaction temperature was 95℃, reaction time was 3.5 h and n（4-Chloro-3,5-dinitroaniline）:n（NaNO₃）=1:8. The infrared spectra analysis, elemental analysis and mass spectrum analysis and other analysis methods were adopted for molecular structural characterization of 4-Chloro-3, 5-dinitrobenzoic acid, 4-Chloro-3, 5-dinitroaniline and DCONAB.A novel thermally stable high explosive N, N′-Bis（3-nitro-1, 2, 4-triazole-5-yl-）-4, 4′-diamino-2, 2′, 3, 3′, 5, 5′, 6, 6′-octanitroazobenzene（BNTDAONAB） has been designed and tried to synthesize based on 4-chlorobenzoic acid and 5-amino-3-nitro-1, 2, 4-triazole（ANTA）. The infrared spectra analysis and other analysis methods were adopted for molecular structural characterization of BNTDAONAB. The detonation parameters of BNTDAONAB was calculated——detonation velocity was 8709 m/s; pressure of detonation was 36.48 GPa;volume of detonation was 815.75 L/kg; oxygen balance was-28.13%; Generate heat was855.35 kJ/mol. The detonation parameters of BNTDAONAB were compared with RDX,HMX, CL-20, TNT, LLM-105, as well as TATB. These studies showed that BNTDAONAB has both a better energy capability and optimal performance.