Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7606473 | Journal of Analytical and Applied Pyrolysis | 2018 | 6 Pages |
Abstract
5,5â²-bis(2,4,6-trinitrophenyl)-2,2â²-bi(1,3,4-oxadiazole) (TKX-55) was synthesized through an oxidation-chloridization-condensation-cyclization sequence. Thermal decomposition behavior and non-isothermal decomposition reaction kinetics of TKX-55 were investigated by the differential scanning calorimetry and thermogravimetric analysis (DSC-TG) methods The research of decomposition mechanism of the molecule was further carried out through in-situ FTIR spectroscopy technologies. The experiment results showed that the enlarged conjugated system has a marked effect on the thermal stability and the picryl moiety is much more stable than the 1,3,4-oxadiazole moiety during the heat-up process, indicating that the decomposition process is mostly likely to initiate from the ring-opening reaction of 1,3,4-oxadiazole moiety which is supported by the computational scanning result of potential energy surface.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Jing Zhou, Li Ding, Fuqiang Bi, Bozhou Wang, Junlin Zhang,