| Polymer composition (mol %) | Degradation temperature (°C) | Thermal properties | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
HB | HV | HHx | T5% | Tmax | Tg (°C) | Tm1 (°C) | Tm2 (°C) | ∆Hm (J g−1) | Tc (°C) | ∆Hc (J g−1) | Xc (%) | |
Batch fermentation | 82.13 | 17.87 | – | 217.15 | 286.81 | 4.98 | 155.4 | 166.64 | 85.59 | 78.07 | 62.61 | 59 |
CFBF cycle 1 | 77.45 | 22.55 | – | 222.52 | 286.87 | 4.95 | 149.89 | 160.77 | 83.93 | 83.69 | 65.89 | 57 |
CFBF cycle 2 | 54.56 | 42.80 | 2.64 | 248.60 | 289.96 | 4.71 | 147.17 | 158.35 | 59.76 | 115.18 | 54.96 | 40 |
CFBF cycle 3 | 52.48 | 43.78 | 3.74 | 253 | 290.66 | 4.65 | 143.77 | 154.53 | 55.77 | 118.54 | 53.50 | 38 |
CFBF cycle 4 | 48.43 | 46.39 | 5.18 | 275.54 | 292.21 | 4.60 | 129.53 | 140.82 | 49.77 | 122.14 | 46.53 | 34 |
Commercial PHB | 89.81 | 10.19 | – | 269.66 | 286.77 | 5.02 | 171.65 | 174.69 | 90.35 | 75.5 | 63.92 | 62 |
Commercial PHBV | 43.35 | 56.65 | – | 264.04 | 288.32 | 4.85 | 138.22 | 146.94 | 60.55 | 113.17 | 58.06 | 41 |