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Table 4 DSC analysis of homopolymers and copolymers synthesized by PhaCAR

From: Versatile aliphatic polyester biosynthesis system for producing random and block copolymers composed of 2-, 3-, 4-, 5-, and 6-hydroxyalkanoates using the sequence-regulating polyhydroxyalkanoate synthase PhaCAR

Sample

Synthesis conditionsa

Tg (°C)

Tm (°C)

ΔH (J/g)

P(3HP)

Entry 11

 − 15.0

71.9

62.3

P(3HB)

Entry 10

2.4

169.0

65.9

P(55.5 mol% 3HB-co-3HP)

Entry 1

 − 15.5, 0.8

47.9, 161.1

7.7, 10.0

P(97.1 mol% 3HB-co-4H2MB)

Entry 6

1.1

155.9

55.5

P(95.2 mol% 3HB-co-5HV)

Entry 7

 − 2.1

159.2

49.4

P(98.3 mol% 3HB-co-6HHx)

Entry 8

0.0

162.4

59.0

P(28.9 mol% 2HB-co-3HB)

Entry 18

3.0

163.4

28.8

P(4.8 mol% 2HB-co-3HP)

Entry 19

 − 14.6

73.2

55.1

P(4.4 mol% 2HB-co-3HB-co-3HP 55.1 mol%)

Entry 23

 − 11.8, − 1.3

50.3

2.3

P(26.8 mol% 2HB-co-3HB-co-4H2MB 2.2 mol%)

Entry 24

2.7

159.3

35.9

P(32.4 mol% 2HB-co-3HB-co-5HV 3.8 mol%)

Entry 25

2.0

163.7

30.3

P(26.5 mol% 2HB-co-3HB-co-6HHx 1.1 mol%)

Entry 26

1.7

159.4

27.6

  1. a The polymers were synthesized using conditions in Tables 1, 2 and 4. Combining different batches caused the slight difference in the monomer composition. Thermograms are shown in Additional file 1: Fig. S5AB