| POLYMER CLASS | Polyglycol |
| COMMON NAMES | Poly(tetrahydrofuran), Poly(tetramethylene glycol), PolyTHF ® |
| STRUCTURE BASED NAME | Poly(tetramethylene oxide), Poly(oxytetramethylene) |
| ACRONYMS | PTMO, PTMEG |
| CAS # | 25190-06-1, 27637-03-2 |
| CurlySMILES | C{-}CCCO{n+} |
| CAS # | 109-99-9 |
| COMMON NAMES | Tetrahydrofuran |
| SMILES | C1CCCO1 |
| Std. InChI | 1S/C4H8O/c1-2-4-5-3-1/h1-4H2 |
| Std. InChIKey | WYURNTSHIVDZCO-UHFFFAOYSA-N |
| STRUCTURE |
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| PROPERTY | UNIT | VALUE / RANGE | PREFERRED |
| Molar Volume Vm | mL mol-1 | 73.4 - 74.0 | 73.7 |
| Density ρ | g mL-1 | 0.97 - 0.98 | 0.98 |
| Solubility Parameter δ | MPa1/2 | 16.6 - 18.5 | 17.5 |
| Molar Cohesive Energy Ecoh | J mol-1 | 19900 - 24700 | 22600 |
| Glass Transition Temperature Tg | K | 185 - 194 | 189 |
| Molar Heat Capacity Cp | J (mol K)-1 | 143 - 151 | 148 |
| Entanglement Molecular Weight Me | g mol-1 | ||
| Index of Refraction n | none | 1.48 |
| PROPERTY | UNIT | VALUE / RANGE | PREFERRED |
| Molecular Weight of Repeat unit | g mol-1 | 72.11 | |
| Van-der-Waals Volume VvW | mL mol-1 | 43.09 | |
| Molar Volume Vm | mL mol-1 | 68.7 - 75.5 | 72.1 |
| Density ρ | g mL-1 | 0.96 - 1.05 | 1.00 |
| Solubility Parameter δ | MPa1/2 | 17.7 - 19.1 | 18.3 |
| Molar Cohesive Energy Ecoh | J mol-1 | 23600 - 25000 | 24000 |
| Glass Transition Temperature Tg | K | 192 - 208 | 193 |
| Molar Heat Capacity Cp | J (mol K)-1 | 151 - 157 | 155 |
| Entanglement Molecular Weight Me | g mol-1 | 1600 - 2300 | 2000 |
| Index of Refraction n | none | 1.47 - 1.48 | 1.47 |