| POLYMER CLASS | Polyesters |
| COMMON NAMES | Polyglycolide, Polyglycolic acid |
| STRUCTURE BASED NAME | Poly[oxy(1-oxo-1,2-ethanediyl)] |
| ACRONYMS | PGA |
| CAS # | 26009-03-0 |
| CurlySMILES | O{-}CC{n+}(=O) |
| CAS # | 502-97-6 |
| COMMON NAMES | Glycolide |
| SMILES | O=C1OCC(=O)OC1 |
| Std. InChI | 1S/C4H4O4/c5-3-1-7-4(6)2-8-3/h1-2H2 |
| Std. InChIKey | RKDVKSZUMVYZHH-UHFFFAOYSA-N |
| STRUCTURE |
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| PROPERTY | UNIT | VALUE / RANGE | PREFERRED |
| Molar Volume Vm | mL mol-1 | 36.3 - 40.0 | 38.3 |
| Density ρ | g mL-1 | 1.50 - 1.60 | 1.52 |
| Solubility Parameter δ | MPa1/2 | 23.1 | |
| Molar Cohesive Energy Ecoh | J mol-1 | 20500 | |
| Glass Transition Temperature Tg | K | 308 - 318 | 312 |
| Molar Heat Capacity Cp | J (mol K)-1 | 112 | |
| Entanglement Molecular Weight Me | g mol-1 | ||
| Index of Refraction n | none | 1.47 - 1.56 | 1.51 |
| PROPERTY | UNIT | VALUE / RANGE | PREFERRED |
| Molecular Weight of Repeat unit | g mol-1 | 58.04 | |
| Van-der-Waals Volume VvW | mL mol-1 | 25.36 | |
| Molar Volume Vm | mL mol-1 | 34.7 - 39.3 | 36.8 |
| Density ρ | g mL-1 | 1.48 - 1.67 | 1.58 |
| Solubility Parameter δ | MPa1/2 | 22.6 - 23.9 | 23.5 |
| Molar Cohesive Energy Ecoh | J mol-1 | 17600 - 22400 | 20300 |
| Glass Transition Temperature Tg | K | 314 | |
| Molar Heat Capacity Cp | J (mol K)-1 | 95 - 102 | 97 |
| Entanglement Molecular Weight Me | g mol-1 | 2800 - 4300 | 3400 |
| Index of Refraction n | none | 1.47 - 1.50 | 1.50 |
Last updated: October 7, 2017