Table 2 The characteristic temperatures of the title compounds at different heating rates and the kinetic parameters
1,1ʹ-Azobis-1,2,3-triazole | 4,4ʹ-Azobis-1,2,4-triazole | ||||||
|---|---|---|---|---|---|---|---|
Heating rates β/°C min−1 | T 0 /°C | T e /°C | T P /°C | Heating rates β/°C min−1 | T 0 /°C | T e /°C | T P /°C |
5 | 176.1 | 188.5 | 189.7 | 5 | 281.7 | 288.8 | 312.7 |
7 | 179.3 | 189.2 | 191.6 | 7 | 286.2 | 294.5 | 315.2 |
10 | 181.2 | 192.5 | 193.9 | 10 | 289.7 | 299.8 | 317.7 |
13 | 183.3 | 193.4 | 195.6 | 15 | 298.6 | 309.2 | 320.4 |
20 | 189.8 | 199.7 | 198.0 | 20 | 302.1 | 315.1 | 322.7 |
T 00 /°C | T e0 /°C | T P0 /°C | T 00 /°C | T e0 /°C | T P0 /°C | ||
163.94 | 180.82 | 183.32 | 278.00 | 276.13 | 303.34 | ||
Data calculated by the Kissinger method | |||||||
E K /kJ mol−1 | 291.4 | 396.2 | |||||
ln(A K /s−1) | 75.53 | 80.98 | |||||
Linear correlation coefficient (r K ) | 0.9986 | 0.9989 | |||||
Standard deviation | 0.0185 | 0.0158 | |||||
Data calculated by the Ozawa–Doyle method | |||||||
E O /kJ mol−1 | 284.5 | 386.1 | |||||
Linear correlation coefficient (r O ) | 0.9986 | 0.9990 | |||||
Standard deviation | 0.0181 | 0.0154 | |||||
E a /kJ mol−1 | 287.95 | 391.15 | |||||