Table 3.
DSC parameters of PHBH films: first (Tm I), second (Tm II), and third (Tm III) melting temperature; melting enthalpies of the first (∆Hm1) and second (∆Hm2) heat cycles; cold crystallization temperature (Tcc); glass transition temperature (Tg).
| Film ID | First Heat Cycle | ∆Hm2 (J/g) | Tcc (°C) | Tg (°C) | |||
|---|---|---|---|---|---|---|---|
| Tm I (°C) | Tm II (°C) | Tm III (°C) | ∆Hm1 (J/g) | ||||
| P−0 | 96.5 | 133.1 | 144.1 | 43.4 | 36.4 | 61.6 | 2.0 |
| PG−10 | 98.9 | 131.7 | 142.5 | 46.4 | 35.7 | 54.3 | 1.0 |
| PG−20 | 92.9 | 125.1 | 135.7 | 32.4 | 28.2 | 63.4 | −4.5 |
| PG−50 | 95.0 | 121.9 | 131.2 | 32.0 | 11.8 | 74.8 | −4.6 |
| PI−10 | 95.9 | 130.4 | 140.6 | 39.3 | 31.2 | 46.2 | −12.1 |
| PI−20 | 93.4 | 127.5 | 138.1 | 34.6 | 24.1 | 41.4 | −24.1 |
| PI−50 | 92.5 | 123.9 | 134.8 | 29.0 | 20.6 | 22.8 | – |
| PP200−10 | 96.4 | 130.7 | 140.9 | 37.1 | 38.7 | 59.9 | −12.0 |
| PP200−20 | 93.4 | 125.8 | 136.4 | 33.9 | 39.5 | 46.4 | −26.2 |
| PP400−10 | 94.4 | 130.4 | 142.1 | 32.5 | 29.8 | 50.6 | −16.5 |
| PP400−20 | 93.4 | 126.0 | 137.0 | 28.1 | 30.8 | 41.9 | −24.6 |
| PP600−10 | 93.5 | 129.7 | 140.6 | 30.5 | 36.8 | 58.6 | −18.7 |
| PP600−20 | 93.4 | 127.9 | 139.1 | 33.4 | 37.1 | 49.2 | −28.2 |
| PP100k−10 | 93.4 | 129.3 | 140.4 | 40.8 | 31.1 | – | −9.6 |
| PP100k−20 | 93.4 | 128.6 | 139.8 | 33.5 | 30.7 | – | −0.7 |