POLYMER CLASS | Polyglycol |
COMMON NAMES | Polyacetal, Poly(formaldehyde), Polymethylene glycol, Delrin®, Celcon®, Duracon® |
STRUCTURE BASED NAME | Poly(oxymethylene), Poly(methylene oxide) |
ACRONYMS | POM |
CAS # | 9002-81-7 |
CurlySMILES | C{-}O{n+} |
CAS # | 50-00-0 |
COMMON NAMES | Methanal |
SMILES | C=O |
Std. InChI | 1S/CH2O/c1-2/h1H2 |
Std. InChIKey | WSFSSNUMVMOOMR-UHFFFAOYSA-N |
STRUCTURE |
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PROPERTY | UNIT | VALUE / RANGE | PREFERRED |
Molar Volume Vm | mL mol-1 | 24.0 - 25.0 | 24.5 |
Density ρ | g mL-1 | 1.20 - 1.25 | 1.23 |
Solubility Parameter δ | MPa1/2 | 20.9 - 22.5 | 21.1 |
Molar Cohesive Energy Ecoh | J mol-1 | 10700 - 12400 | 10900 |
Glass Transition Temperature Tg | K | 188 - 243 | 211 |
Molar Heat Capacity Cp | J (mol K)-1 | 58 - 63 | 61 |
Entanglement Molecular Weight Me | g mol-1 | 2500 - 2600 | 2550 |
Index of Refraction n | none | 1.48 - 1.51 | 1.495 |
PROPERTY | UNIT | VALUE / RANGE | PREFERRED |
Molecular Weight of Repeat unit | g mol-1 | 30.03 | |
Van-der-Waals Volume VvW | mL mol-1 | 12.25 | |
Molar Volume Vm | mL mol-1 | 22.0 - 26.4 | 23.7 |
Density ρ | g mL-1 | 1.14 - 1.36 | 1.27 |
Solubility Parameter δ | MPa1/2 | 19.9 - 22.9 | 21.3 |
Molar Cohesive Energy Ecoh | J mol-1 | 10100 - 11500 | 10700 |
Glass Transition Temperature Tg | K | 207 - 226 | 216 |
Molar Heat Capacity Cp | J (mol K)-1 | 62 - 66 | 63 |
Entanglement Molecular Weight Me | g mol-1 | 2000 - 3700 | 2900 |
Index of Refraction n | none | 1.44 - 1.48 | 1.47 |