1. Mechanical Properties of PHAs and Their Blends with Terratek Resins. Commercial PP values were obtained from a technical datasheet for ExxonMobil PP1013H1 resin published by Exxon Mobil Corporation .

sample	Young’s modulus (GPa)	% elongation at break	yield stress (MPa)	notched impact strength (kJ/m2)	unnotched impact strength (kJ/m2)
commercial PP	1.50		33.5	3.1
PHB	1.50 ± 0.02	5.3 ± 0.8	16.18 ± 2.85	2.37 ± 0.07	9.61 ± 0.29
PHB-co-HHx	0.89 ± 0.04	18.9 ± 2.1	14.80 ± 0.72	2.50 ± 0.09	102.97 ± 0.33
FX1515	0.058 ± 0.001	468.5 ± 11.9	5.59 ± 0.03	-
GDH-B1FA	0.016 ± 0.0002	701.9 ± 15.6	2.57 ± 0.02	-
10F-PHB	1.35 ± 0.06	6.9 ± 0.4	27.49 ± 0.42	2.37 ± 0.03	14.12 ± 1.40
20F-PHB	1.13 ± 0.05	11.5 ± 1.6	21.03 ± 1.83	2.37 ± 0.03	50.49 ± 1.51
30F-PHB	0.88 ± 0.07	19.3 ± 1.6	15.69 ± 2.07	4.07 ± 0.18	73.79 ± 4.56
10G-PHB	1.06 ± 0.02	8.9 ± 1.1	10.26 ± 0.67	2.29 ± 0.03	37.14 ± 0.65
20G-PHB	1.04 ± 0.06	22.0 ± 1.4	11.06 ± 1.09	2.07 ± 0.17	57.90 ± 6.36
30G-PHB	0.82 ± 0.09	44.01 ± 4.13	11.11 ± 3.83	4.79 ± 0.46	98.23 ± 1.97
10F-PHB-co-HHx	0.72 ± 0.01	87.3 ± 10.7	11.5 ± 0.05	2.10 ± 0.08	no break
20F-PHB-co-HHx	0.61 ± 0.02	201.0 ± 8.6	9.92 ± 0.18	4.78 ± 0.19	no break
30F-PHB-co-HHx	0.45 ± 0.01	271.7 ± 10.3	8.04 ± 0.06	13.81 ± 1.91	no break
10G-PHB-co-HHx	0.70 ± 0.05	17.4 ± 2.1	13.19 ± 0.88	2.07 ± 0.08	no break
20G-PHB-co-HHx	0.64 ± 0.04	93.3 ± 7.9	10.04 ± 0.08	17.11 ± 3.54	no break
30G-PHB-co-HHx	0.43 ± 0.01	279.8 ± 5.0	7.65 ± 0.15	59.23 ± 1.27	no break