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Table 1 The mechanical properties of films composed of PHB, random and putative block-PHBVs, commercialized PHB, PS and PVC

From: Biocompatibilities and biodegradation of poly(3-hydroxybutyrate-co-3-hydroxyvalerate)s produced by a model metabolic reaction-based system

Sample

3HV mol%

D value

Elongation (%) at max load

Stress at max load (MPa)

Young’s modulus (MPa)

Toughness (MPa)

PHB (Sigma-Aldrich Corp.)

  

1.99

18.21

1068.05

1.22

PHB

  

1.57

20.96

1541.95

0.09

Random PHBVs

      

R 5

5

121

1.59

19.19

1243.94

1.77

R 14

14

1.66

3.90

11.80

498.10

2.44

R 23

23

1.15

13.35

10.76

331.50

3.54

R 53

53

1.92

0.80

4.07

356.00

3.50

R 60

60

2.11

1.70

5.91

307.44

3.22

R 72

72

1.84

1.60

8.47

478.85

2.69

R 80

80

1.23

2.94

11.69

507.64

2.54

Putative block PHBVs

      

B 12

12

14.81

1.08

1.10

78.09

0.16

B 19

19

10.26

1.22

0.99

76.76

0.68

B 41

41

7.92

3.64

12.05

388.14

1.41

B50

50

5.35

6.22

8.64

296.12

5.76

Polystyrene

  

0.36

0.99

76.76

0.57

Polyvinylchloride

  

1.59

120.5

386.07

2.59