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Thermodynamic Analysis and Pyrolysis Mechanism of 4,4′-Azobis-1,2,4-triazole

[Image: see text] The nonisothermal thermal decomposition kinetics of 4,4′-azobis-1,2,4-triazole (ATRZ) at different heating rates (5, 10, 15, and 20 °C·min(–1)) were investigated by thermogravimetry (TG) and differential scanning calorimetry (DSC) studies. The thermal decomposition kinetic paramete...

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Detalles Bibliográficos
Autores principales: Qin, Kaiyi, Zhu, Mimi, Zhang, Mingmin, Zhang, Linan, Cheng, Benduan, Lin, Qiuhan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2023
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10552472/
https://www.ncbi.nlm.nih.gov/pubmed/37810696
http://dx.doi.org/10.1021/acsomega.3c05501
Descripción
Sumario:[Image: see text] The nonisothermal thermal decomposition kinetics of 4,4′-azobis-1,2,4-triazole (ATRZ) at different heating rates (5, 10, 15, and 20 °C·min(–1)) were investigated by thermogravimetry (TG) and differential scanning calorimetry (DSC) studies. The thermal decomposition kinetic parameters such as apparent activation energy (E) and pre-exponential factor (A) were calculated by the Kissinger, Ozawa, and Šatava-Šestak methods. The E and A values calculated by the above three methods are very close, which are 391.1 kJ·mol(–1)/1034.92 s(–1), 381.1 kJ·mol(–1)/1034.30 s(–1), and 393.4 kJ·mol(–1)/1035.76 s(–1), respectively. Then, the decomposition mechanism function of ATRZ is analyzed by the calculated results. The results show that the decomposition temperature of ATRZ is about 300 °C and the exothermic decomposition speed is fast. The decomposition pathway of ATRZ was analyzed by pyrolysis-gas chromatography–mass spectrometry (PY-GC-MS). The thermal decomposition kinetic equation of the ATRZ was deduced.