Thermal Decomposition Behavior of 4-Aryl-1,2,3-selenadiazole Derivatives Investigated by Thermogravimetric Analysis
DOI:
https://doi.org/10.32792/utq/utjsci/v13i1.1448Keywords:
1,2,3-selenadiazole * , , thermogram*, TGA*, ,thermogravimetric analysis , organo-selenium compounds *Abstract
The thermal analysis behavior of some organoselenium compounds based on 4-aryl-1,2,3-selenadiazole was carried out by thermogravimetric analysis. The studied compounds have been selected to be substituted with different electron donating and electron withdrawing groups to investigate the effect of these groups on stability of studied compounds. The thermal analysis (TG and DTG) has been carried out under inert atmosphere by using nitrogen gas. The thermal analysis indicated that the thermal decomposition of the studied compounds is exceedingly affected by both of the steric effects and electronic nature of the substituted groups. The electron with drawing groups such as CN and NO2 indicate mostly improved thermal stability. On the other hand, the electron donating groups such as CH3 and OCH3 indicate reduced thermal stability. Furthermore, there are parameters like the residual mass at high temperatures and steps of decompositions may provide valuable insights on the thermal resistance of the studied compounds. The results highlight the structure property relation of studied compounds and propose their possible for using in polymer stabilization, chemical vapor deposition and high temperature materials.
Received: 2025-07-12
Revised: 2025-08-16
Accepted: 2025-08-22
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