Table 5.
Kinetic parameters of the polyhydrazides 31, 32 and poly (1,3,4-oxadiazole-amide)s 33, 34
| No | Slope DTA | ΔEa | a | b | Sb | Nc | αmd | Tm (K) | Ze | ΔSf | ΔHg | hR2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
31 |
−25.9 |
215.5 |
0.5 |
0.4 |
3.5 |
1.4 |
0.56 |
557.2 |
2.5 |
−0.24 |
−135.0 |
0.99 |
| −16.6 |
138.4 |
0.9 |
0.4 |
6.4 |
1.8 |
0.51 |
696.0 |
1.2 |
−0.25 |
−174.1 |
0.99 |
|
| −13.7 |
114.2 |
3.4 |
1.3 |
7.4 |
2.0 |
0.49 |
825.2 |
0.8 |
−0.25 |
−210.2 |
0.99 |
|
|
32 |
−19.7 |
164.3 |
4.3 |
2.3 |
5.3 |
1.7 |
0.52 |
853.9 |
1.1 |
−0.25 |
−215.3 |
0.99 |
|
33 |
−2.4 |
19.9 |
0.5 |
1.6 |
0.8 |
0.7 |
0.69 |
357.1 |
0.34 |
−0.25 |
−91.1 |
0.90 |
| −12.9 |
107.8 |
4.6 |
1.4 |
9.3 |
2.2 |
0.47 |
849.9 |
0.77 |
−0.25 |
−217.3 |
0.88 |
|
| 34 | −19.5 | 162.8 | 3.2 | 1.1 | 8.3 | 2.1 | 0.48 | 823.0 | 1.2 | −0.25 | −207.1 | 0.94 |
aΔE:activation energy, bS: asymmetry of the peak, cn: order of chemical reaction, dαm: decomposed substance fraction at the moment of maximum development of reaction with (T = Tm), eZ: collision factor (s-1), fΔS: entropy in KJ/mol, gΔH: enthalpy in KJ/mol, hR2: coefficient of determination.