Table 3.
Thermodynamic parameters obtained from DSC analysis of CBZ polymorphs and glass.
| Structure | Tg (°C) | ∆H (J/g) | Onset (°C) | Tm (°C) |
|---|---|---|---|---|
| CBZ I | ||||
|
| ||||
| Form I fusion | 113.95 | 190.38 | 191.38 | |
|
| ||||
| CBZ III | ||||
|
| ||||
| CBZ III fusion | 20.856 | 173.35 | 174.95 | |
| CBZ I cold-crystallization | 5.217 | 175.44 | 175.95 | |
| CBZ I fusion | 110.91 | 191.10 | 191.26 | |
|
| ||||
| CBZ·2H2O | ||||
|
| ||||
| Dehydration | 362.85 | 73.03 | 84.49, 95.35 | |
| Mixed phase melting | 7.085 | 155.99 | 164.47 | |
| CBZ I fusion | 95.052 | 190.75 | 191.16 | |
|
| ||||
| CBZ glass | ||||
|
| ||||
| Glass transition, onset | ||||
| Glass transition, midpoint | 42.83 | |||
| CBZ I cold-crystallization | 46.03 | 57.083 | 81.98 | 97.62 |
| CBZ I fusion | 102.21 | 189.00 | 190.31 | |