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Possibilities of the 13C NMR Spectroscopy Application in the Study of Initiation Reactivity of Highly Thermally Stable Polynitro Arenes
Authors: Roháč Michal | Zeman Svatopluk | Svobodová Markéta
Year: 2007
Type of publication: článek ve sborníku
Name of source: Theory & Practice of Energetic Materials
Publisher name: Science Press
Place: Beijing
Page from-to: 127-135
Titles:
Language Name Abstract Keywords
cze Možnosti aplikace 13C NMR spektroskopie ve studiu iniciační reaktivity vysoce tepelně stálých polynitroarenů Práce je věnována aplikaci 13C NMR chemických posunů, C, ve studiu iniciační reaktivity 1,3-dinitrobenzenu (1,3-DNB), 1,3,5-trinitrobenzenu (TNB), 2,2´,4,4´,6,6´-hexanitro-1,1´-biphenylu (HNB), 2,2˝,4,4´,4˝,6,6´,6˝-oktanitro-1,1´:3´,1˝-terfenylu (ONT), 2,2´,2˝,4,4´,4˝,6,6´,6˝-nonanitro-1,1´:3´,1˝-terfenylu (NONA), 2,4,6-tris(2,4,6-trinitrofenyl)-1,3,5-triazinu (TPT), 2,2´,2˝,2´˝,4,4´,4˝,4´˝,6,6´,6˝,6´˝-dodekanitro-1,1´:3´1˝:3˝,1´˝-quaterfenylu (DODECA) a 1,4,5,8-tetranitronafhthalenu (TENN). Jako charakteristiky iniciační reaktivity studovaných polynitroarenů byly brány aktivační energie jejich tepelného rozkladu, prahy jejich tepelné stálosti, teploty vzbuchu, počátky jejich tepelného rozkladu, jejich citlivosti k nárazu a elektrické jiskře, a jejich výbuchová tepla. Byly nalezeny vztahy mezi C, hodnotami a uvedenými charakteristikami reaktivity studovaných sloučenin. Je konstatováno, že kumulace trinitrofenylenovývh stavebních jednotek v molekule vede k poklesu tepelné stability v rezultujících polynitroarenech. 13C NMR chemické posuny, citlivost k elektrické jiskře, pádová citlivost, iniciační reaktivita, polynitroareny, tepelná reaktivita
eng Possibilities of the 13C NMR Spectroscopy Application in the Study of Initiation Reactivity of Highly Thermally Stable Polynitro Arenes The paper is focused on application of 13C NMR chemical shift, C, in the study of initiation reactivity of 1,3-dinitrobenzene (1,3-DNB), 1,3,5-trinitrobenzene (TNB), 2,2´,4,4´,6,6´-hexanitro-1,1´-biphenyl (HNB), 2,2˝,4,4´,4˝,6,6´,6˝-octanitro-1,1´:3´,1˝-terphenyl (ONT), 2,2´,2˝,4,4´,4˝,6,6´,6˝-nonanitro-1,1´:3´,1˝-terphenyl (NONA), 2,4,6-tris(2,4,6-trinitrophenyl)-1,3,5-triazine (TPT), 2,2´,2˝,2´˝,4,4´,4˝,4´˝,6,6´,6˝,6´˝-dodecanitro-1,1´:3´1˝:3˝,1´˝-quaterphenyl (DODECA) and 1,4,5,8-tetranitronaphthalene (TENN). In the nature of the characteristics of the studied polynitro arenes reactivity, activation energies of their thermal decomposition, their thermostability thresholds, ignition temperatures, onsets of their exothermic decomposition, their sensitivities to impact and electric spark and their heats of explosion are taken. The relationships found between the deltaC values and mentioned characteristics make it possible to specify reaction centres in molecules of the studied arenes. It is stated that cumulation of trinitrophenylene building units over three in the molecule leads to decreasing thermal stability in the resulting polynitro arene 13C NMR chemical shifts, electric spark sensitivity, impact sensitivity, initiation reactivity, polynitro arenes, thermal reactivity,

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