POLYMER CLASS | Polyesters |
COMMON NAMES | Poly[(tetramethylene terephthalate), Poly(1,4-butylene terephthalate), Poly[(butane-1,4-diol)-alt-(terephthalic acid)] |
STRUCTURE BASED NAME | Poly(oxybutane-1,4-diyloxyterephthaloyl), Poly(oxytetramethyleneoxyterephthaloyl) |
ACRONYMS | PBT |
CAS # | 24968-12-5 |
CurlySMILES | O{-}C(=O)c1ccc(cc1)C(=O)OCCCC{n+} |
CAS # | 60088-54-2.110-63-4 |
COMMON NAMES | Terephthalic acid + 1,4-Butanediol |
SMILES | OC(=O)c1ccc(cc1)C(=O)O.OCCCCO |
Std. InChI | 1S/C8H6O4/c9-7(10)5-1-2-6(4-3-5)8(11)12/h1-4H,(H,9,10)(H,11,12).1S/C4H10O2/c5-3-1-2-4-6/h5-6H,1-4H2 |
Std. InChIKey | KKEYFWRCBNTPAC-UHFFFAOYSA-N.WERYXYBDKMZEQL-UHFFFAOYSA-N |
STRUCTURE |
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PROPERTY | UNIT | VALUE / RANGE | PREFERRED |
Molar Volume Vm | mL mol-1 | 168.1 - 175.5 | 175.5 |
Density ρ | g mL-1 | 1.261 - 1.31 | 1.26 |
Solubility Parameter δ | MPa1/2 | 22.4 | |
Molar Cohesive Energy Ecoh | J mol-1 | 87700 | |
Glass Transition Temperature Tg | K | 290 - 353 | 313 |
Molar Heat Capacity Cp | J (mol K)-1 | 268 | |
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 | 220.22 | |
Van-der-Waals Volume VvW | mL mol-1 | 116.86 | |
Molar Volume Vm | mL mol-1 | 167.6 - 178.2 | 174.0 |
Density ρ | g mL-1 | 1.24 - 1.31 | 1.27 |
Solubility Parameter δ | MPa1/2 | 20.8 - 21.2 | 21.0 |
Molar Cohesive Energy Ecoh | J mol-1 | 72300 - 79900 | 76400 |
Glass Transition Temperature Tg | K | 313 - 325 | 313 |
Molar Heat Capacity Cp | J (mol K)-1 | 265 - 283 | 274 |
Entanglement Molecular Weight Me | g mol-1 | 1200 - 2000 | 1600 |
Index of Refraction n | none | 1.54 - 1.57 | 1.55 |
1Extrapolated data
Last updated: March 12, 2018