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Table 2 Comparison of physical properties of the block copolymer with different kinds of polymers

From: Synthesis of Diblock copolymer poly-3-hydroxybutyrate -block-poly-3-hydroxyhexanoate [PHB-b-PHHx] by a β-oxidation weakened Pseudomonas putida KT2442

PHA Type Tg (°C) Tm (°C) Tc (°C) Young’s
Modulus
(MPa)
Elongation
At Break
(%)
Tensile Strength
(MPa)
PHB 27 3.1 171.8 41.2 1470 ± 78.0 3.0 ± 0.40 18.0 ± 0.70
PHHx −28.2      
Blend PHB/PHHx
(PHHx 42 mol %)
- 8.2, -27.3 173.8 58.6 80.21 ± 5.23 10.14 ± 1.12 4.32 ± 0.45
Block PHB-b-PHHx
(PHHx 42 mol %)
2.7, -16.14 172.1 69.1 7.58 ± 2.70 207.31 ± 15.38 1.42 ± 0.24
Random P(3HB-co-3HHx) (HHx 21 mol %) −18.1 55.4   23.58 ± 4.10 75.29 ± 9.25 1.84 ± 0.36
Styrene butadiene rubber
(SBR) 44,45
−55    1.80 ± 0.05 450.0 ± 0.0 2.10 ± 0.05
  1. Tg, glass transition temperature, Tm, melting temperature, Tc, crystallization temperature.