Validation of approaches (introduction of conjugation & condensation with triazole ring/s) for imparting/improving thermal stability of explosives, Part II

There are 4 general approaches for imparting or improving thermal stability of explosives ‘Salt Formation’, ‘Introduction of Amino Group/s’, ‘Introduction of Conjugation’ & ‘Condensation with Triazole Ring/s’ as proposed by Agrawal which were supported by some typical examples. We have recently reported a large number of explosives which validate ‘Salt Formation’ & ‘Introduction of Amino Group/s’ approaches. In this review paper, we report additional examples of explosives scattered over in the literature to validate the ‘Introduction of Conjugation’ & ‘Condensation with Triazole Ring/s’ approaches for imparting/improving thermal stability of explosives. Wherever, data on thermal stability is not available in the literature, the same has been calculated using Energetic Materials Designing Bench (EMDB), Version 1.0. The data generated on a large number of explosives clearly brings out validation of ‘Introduction of Conjugation’ & ‘Condensation with Triazole Ring/s’ approaches for imparting/improving thermal stability of explosives. Further, as the number of triazole ring/s increases, thermal stability also increases. In addition, density, impact sensitivity & velocity of detonation data of promising explosives which are also essential from their application point of view, have been reported. This study also reveals that explosives (i) DAHNS (Explosive 3), PATO (Explosive 15), BTATNB (Explosive 17), TTTATNB (Explosive 19), DANTNP (Explosive 31) and TTATNB (Explosive 35) appear to be better substitutes of HNS and (ii) BDATTz (Explosive 36) and BTDAONAB (Explosive 39) appear to be better substitutes of TATB, a benchmark thermally stable explosive at present.