Table 2. Surface properties of films from solutions of PHAs with different chemical compositions.
| Sample No. | PHA composition, mol. % | θ | γ (erg/cm2) | W SL (erg/cm2) | γSL (erg/cm2) | Ra (nm) | Rq (nm) |
| – | P3HB (100) | 70°00 | 32.78 | 97.70 | 7.88 | 71.75 | 80.28 |
| 1 | P(3HB/3HV/4HB) (55.2/18.5/26.3) | 79°10 | 25.73 | 86.56 | 11.97 | 113.74 | 153.39 |
| 3 | P(3HB/3HV/4HB) (59.4/7.2/33.4) | 84°06 | 22.16 | 80.33 | 14.63 | 43.32 | 56.24 |
| 4 | P(3HB/3HV/4HB) (47.3/17.7/35.0) | 89°20 | 18.71 | 73.81 | 17.7 | 172.37 | 206.06 |
| 5 | P(3HB/3HV/4HB) (26.2/13.4/60.4) | 82°92 | 22.96 | 81.77 | 13.99 | 63.88 | 74.69 |
| 6 | P(3HB/3HV/3HHx) (71.4/26.1/2.5) | 92°72 | 16.51 | 69.34 | 19.97 | 19.54 | 22.89 |
| 8 | P(3HB/3HV/3HHx) (84.6/1.8/13.6) | 96°82 | 14.13 | 64.15 | 22.78 | 208.29 | 243.62 |