Aplicação de metodologias FTIR de transmissão e fotoacústica à caracterização de materiais altamente energéticos: parte II

Elizabeth da Costa Mattos, Itamar Viganó, Rita de Cássia Lazzarini Dutra, Milton Faria Diniz, Koshun Iha
2002 Química Nova  
3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX) were characterized by Fourier transform infrared (FTIR) transmission spectroscopy and/or Fourier transform infrared photoacoustic spectroscopy (FTIR-PAS). By these techniques the spectrometric alterations that occurred during the process were observed. The characterized species during the synthesis of HMX were a-HMX, b-HMX, hexahydro-1,3,5trinitro-1,3,5-triazine (RDX) and HMX/RDX mixtures. The FTIR-PAS was verified to be a promising technique of great
more » ... technique of great usefulness of the characterization of highly energetic materials because it is fast, simple and requires no sample preparation unlike Fourier transform infrared transmission technique (KBr pellet). The FTIR-PAS analysis showed that with small sample quantity is possible to distinguish between the a-HMX and b-HMX and to detect even in a qualitative way different HMX / RDX ratios.
doi:10.1590/s0100-40422002000500003 fatcat:ivqrqigdtbatviqdjqz567ovam