Energetic polynitrophenyl substituted 1,2,4-triazole derivatives: synthesis, properties and LC-MS analysis

摘要

Synthesis and properties of series of polynitrophenyl substituted 1,2,4-triazole derivatives derivatives are described. Modified, more convenient synthetic methods are based on the condensation reactions supported by microwave activation. The synthesized products were analyzed by LC-MS method. Thermal analysis of selected representatives was done. The most of prepared compounds possess a high melting points (250-320 °C) and exceptional thermal stability, superior to standard HNS, and can find a potential application as thermostable energetic materials. The heat resistant properties of synthesized materials were further confirmed by additional experiments with flash point determination. It was also determined that compounds containing N-NH- fragment, attached to the polynitrophenyl moiety possess decreased thermostability when comparing to the isomeric triazole derivatives, containing in their structure C-NH- fragment. Some calculated preliminary energetic characteristics show that polinitrophenyl substituted triazole derivatives prepared in this work possess a substantially increased energetic properties in comparison with standard TNT. The proposed nitrocompounds may find a potential application as thermostable high energy materials.