Thermal decomposition of energetic materials. 2. The thermolysis of nitrate and perchlorate salts of the pentaerythrityltetrammonium ion, C(CH2NH3)44+, by rapid-scan FTIR spectroscopy. The crystal structure of pentaerythrityltetrammonium nitrate ([C(CH2NH3)4](NO3)4)

1985 ◽  
Vol 89 (11) ◽  
pp. 2309-2315 ◽  
Author(s):  
Y. Oyumi ◽  
T. B. Brill ◽  
A. L. Rheingold ◽  
C. Lowe-Ma
1997 ◽  
Vol 110 (1-2) ◽  
pp. 239-255 ◽  
Author(s):  
E.S. Kim ◽  
H.S. Lee ◽  
C.F. Mallery ◽  
S.T. Thynell

1989 ◽  
Vol 43 (4) ◽  
pp. 650-653 ◽  
Author(s):  
J. T. Cronin ◽  
T. B. Brill

Rapid-scan FT-IR studies are reported for the thermal decomposition of R (CH2)3C(NO2)2N3 ( R = CH3OC(O)-, HO-, -OC(O)O-, and O2NO-) at a heating rate of 70°C/s or higher. The thermolysis is initiated by the -C(NO2)2N, group. At 15 psi Ar, a sharp exotherm occurs at about 180°C. Except when R = O2NO-, the gas products are NO2, N2 (inferred), and R(CH2)3CN, making the rapid thermal decomposition one of the most straightforward yet observed for an energetic functional group. At an Ar gas pressure of 500 psi, the products are altered only to the extent that partial oxidation of the organonitrile occurs. The exotherm remains at about 180°C but is greatly accentuated. When R = O2NO-, the thermolysis temperature profile is very similar to the other compounds, but an organonitrile is not detected. Instead, at 15 psi Ar, a mixture of gas products resulting from the reaction of NO, with the backbone is detected, indicating that the nitrate ester also reacts. At 500 psi Ar, the products and thermal profile of this compound are characteristic of an explosion.


Polyhedron ◽  
2012 ◽  
Vol 33 (1) ◽  
pp. 450-455 ◽  
Author(s):  
Diego M. Gil ◽  
Manuel Avila ◽  
Edilso Reguera ◽  
Silvina Pagola ◽  
M. Inés Gómez ◽  
...  

ChemInform ◽  
2009 ◽  
Vol 40 (2) ◽  
Author(s):  
Bjoern Blaschkowski ◽  
Harald Balzer ◽  
Hans-Lothar Keller ◽  
Thomas Schleid

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Jing Zhou ◽  
Li Ding ◽  
Yong Zhu ◽  
Bozhou Wang ◽  
Xiangzhi Li ◽  
...  

AbstractOrganic inner salt structures are ideal backbones for heat-resistant energetic materials and systematic studies towards the thermal properties of energetic organic inner salt structures are crucial to their applications. Herein, we report a comparative thermal research of two energetic organic inner salts with different tetraazapentalene backbones. Detailed thermal decomposition behaviors and kinetics were investigated through differential scanning calorimetry and thermogravimetric analysis (DSC-TG) methods, showing that the thermal stability of the inner salts is higher than most of the traditional heat-resistant energetic materials. Further studies towards the thermal decomposition mechanism were carried out through condensed-phase thermolysis/Fourier-transform infrared (in-situ FTIR) spectroscopy and the combination of differential scanning calorimetry-thermogravimetry-mass spectrometry-Fourier-transform infrared spectroscopy (DSC-TG-MS-FTIR) techniques. The experiment and calculation results prove that the arrangement of the inner salt backbones has great influence on the thermal decompositions of the corresponding energetic materials. The weak N4-N5 bond in “y-” pattern tetraazapentalene backbone lead to early decomposition process and the “z-” pattern tetraazapentalene backbone exhibits more concentrated decomposition behaviors.


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