TABLE 1.
Properties of PHAs and polypropylenea
| Parameter | Value forb:
|
||||
|---|---|---|---|---|---|
| P(3HB) | P(3HB-3HV) | P(3HB-4HB) | P(3HO-3HH) | PP | |
| Tm (°C)c | 177 | 145 | 150 | 61 | 176 |
| Tg (°C)d | 2 | −1 | −7 | −36 | −10 |
| Crystallinity (%) | 70 | 56 | 45 | 30 | 60 |
| Extension to break (%) | 5 | 50 | 444 | 300 | 400 |
a
Data from reference 42.
b
P(3HB) is poly(3-hydroxybutyrate), P(3HB-3HV) is poly(3-hydroxybutyrate-co-3-hydroxyvalerate) containing 20% 3HV, P(3HB-4HB) is poly(3-hydroxybutyrate-co-4-hydroxybutyrate) containing 16% 4HB, P(3HO-3HH) is poly(3-hydroxyoctanoate-co-3-hydroxyhexanoate) containing 11% 3HH, and PP is polypropylene.
c
Tm is melting temperature.
d
Tg is glass transition temperature.