Towards the thermal reactivity and behavior of co-agglomerated crystals of DATB and TATB with attractive nitramines

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F23%3A39920211" target="_blank" >RIV/00216275:25310/23:39920211 - isvavai.cz</a>

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0040603123000631?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0040603123000631?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.tca.2023.179494" target="_blank" >10.1016/j.tca.2023.179494</a>

Result language

angličtina

Original language name

Towards the thermal reactivity and behavior of co-agglomerated crystals of DATB and TATB with attractive nitramines

Original language description

The thermolysis of the co-agglomerates (CACs) of the attractive nitramines RDX, BCHMX, HMX and CL-20 with 1,3-diamino-2,4,6-trinitrobenzene (DATB) and 1,3,5-triamino-2,4,6-trinitrobenzene (TATB) was studied by means of differential thermal analysis (DTA) and differential scanning calorimetry (DSC), using the Kissinger method for output evaluation. The insertion of both DATB and TATB molecules into nitramine crystal lattices markedly increased the thermal sensitivity of the resulting CACs to overheating. Depression in melting points was detected in all CACs and, with the exception of RDX CACs, also in the exothermic peaks. The RDX CACs differ from the other studied CACs by their decomposition in the liquid state. The activation energies (Ea), obtained correlate with asymmetric N-O stretching vibrations, confirming the important influence of ‒N‒O⋅⋅⋅⋅H‒N= interactions in CACs; a similar correlation with asymmetric NO2 stretching confirms the interactions of DATB and TATB molecules with nitramine molecules through van der Waals forces. The insertion of DATB or TATB into the crystal lattice of HMX or CL20 changes their polymorphic modification from β- to δ- and in the latter case from εto β- modifications in the corresponding CACs. The correlations of the Ea values with the square of detonation velocity as a representative of performance and with the heat of combustion as a representative of the energy content are consistent with already previously described relationships of this type, including exceptions for pure nitramines.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10403 - Physical chemistry

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Thermochimica Acta

ISSN

0040-6031

e-ISSN

1872-762X

Volume of the periodical

724

Issue of the periodical within the volume

June

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

13

Pages from-to

179494

UT code for WoS article

000971743700001

EID of the result in the Scopus database

2-s2.0-85151256092