POLYMER CLASS | Polyesters |
COMMON NAMES | Poly(3-hydroxybutyrate), Poly(3-hydroxybutyric acid), Poly(beta-hydroxybutyrate) |
STRUCTURE BASED NAME | Poly(3-hydroxybutanoic acid) |
ACRONYMS | P3HB, PHB |
CAS # | 26063-00-3 |
CurlySMILES | C{-}(C)CC(=O)O{n+} |
CAS # | 3068-88-0 |
COMMON NAMES | β-Butyrolactone |
SMILES | CC1CC(=O)O1 |
Std. InChI | 1S/C4H6O2/c1-3-2-4(5)6-3/h3H,2H2,1H3 |
Std. InChIKey | GSCLMSFRWBPUSK-UHFFFAOYSA-N |
STRUCTURE |
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PROPERTY | UNIT | VALUE / RANGE | PREFERRED |
Molar Volume Vm | mL mol-1 | 68.3 - 73.1 | 70.7 |
Density ρ | g mL-1 | 1.18 - 1.26 | 1.22 |
Solubility Parameter δ | MPa1/2 | 19.2 | |
Molar Cohesive Energy Ecoh | J mol-1 | ||
Glass Transition Temperature Tg | K | 268 - 288 | 276 |
Molar Heat Capacity Cp | J (mol K)-1 | ||
Entanglement Molecular Weight Me | g mol-1 | ||
Index of Refraction n | none |
PROPERTY | UNIT | VALUE / RANGE | PREFERRED |
Molecular Weight of Repeat unit | g mol-1 | 86.09 | |
Van-der-Waals Volume VvW | mL mol-1 | 45.92 | |
Molar Volume Vm | mL mol-1 | 68.1 - 71.4 | 70.0 |
Density ρ | g mL-1 | 1.21 - 1.26 | 1.23 |
Solubility Parameter δ | MPa1/2 | 19.2 - 20.1 | 19.6 |
Molar Cohesive Energy Ecoh | J mol-1 | 25100 - 28500 | 26800 |
Glass Transition Temperature Tg | K | 272 - 286 | 279 |
Molar Heat Capacity Cp | J (mol K)-1 | 141 - 161 113 - 125 | 155 (l,r) 118 (s) |
Entanglement Molecular Weight Me | g mol-1 | 2500 - 3600 | 2900 |
Index of Refraction n | none | 1.46 - 1.49 | 1.48 |
Last updated: July 29, 2016