Composite energetic materials constructed by metal nitrates and nitro-substituted polymers

Abstract The structure of porous polymer materials with high specific surface area can be designed in advance, and be functionalized by modification to realize their application in specific fields. To expand the application of porous polymers in the field of energetic materials, in this paper, biphenyl-dichlorobenzyl homopolymers (Bhp) were synthesized using dichloroethane as the solvent, anhydrous ferric chloride as the catalyst. The best surface area of the polymers obtained is 3068 m 2 /g. By the nitration of Bhp with mixed sulfuric and nitric acids, the nitro-substituted polymers (NBhp) was synthesized and characterized by elemental analysis and IR spectra. Different kinds of transition metal (Fe, Co, Ni, Cu) nitrates were loaded on the NBhp by impregnation method. The thermal decompositions of the composite energetic materials (CEMs) have been carried out through DSC and TG-DTG analyzes at a heating rate of 10°C/min. The results indicate that the CEMs have high heat-resistant stability. The thermal decomposition mechanism of the composite CuNBhp shows that the rapid thermal decomposition of NBhp can occur at lower temperatures, accompanied by the decomposition of metal nitrate, and the final decomposition products are metal oxides.