| POLYMER CLASS | Polyesters |
| COMMON NAMES | Poly(trimethylene terephthalate) |
| STRUCTURE BASED NAME | Poly(oxypropyleneoxyterephthaloyl), Poly(1,3-propylene terephthalate) |
| ACRONYMS | PTT |
| CAS # | 26590-75-0 |
| CurlySMILES | O{-}C(=O)c1ccc(cc1)C(=O)OCCC{n+} |
| CAS # | |
| COMMON NAMES | Terephthalic acid + Propylene glycol |
| SMILES | OC(=O)c1ccc(cc1)C(=O)O.OCCCO |
| 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).InChI=1S/C3H8O2/c4-2-1-3-5/h4-5H,1-3H2 |
| Std. InChIKey | KKEYFWRCBNTPAC-UHFFFAOYSA-N.YPFDHNVEDLHUCE-UHFFFAOYSA-N |
| STRUCTURE |
|
| PROPERTY | UNIT | VALUE / RANGE | PREFERRED |
| Molar Volume Vm | mL mol-1 | 152.7 - 155.0 | 153.9 |
| Density ρ | g mL-1 | 1.33 - 1.35 | 1.34 |
| Solubility Parameter δ | MPa1/2 | ||
| Molar Cohesive Energy Ecoh | J mol-1 | ||
| Glass Transition Temperature Tg | K | 315 - 341 | 326 |
| Molar Heat Capacity Cp | J (mol K)-1 | 236.1 | |
| 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 | 206.2 | |
| Van-der-Waals Volume VvW | mL mol-1 | 106.6 | |
| Molar Volume Vm | mL mol-1 | 151.2 - 162.6 | 157.9 |
| Density ρ | g mL-1 | 1.27 - 1.36 | 1.31 |
| Solubility Parameter δ | MPa1/2 | 21.2 - 21.5 | 21.4 |
| Molar Cohesive Energy Ecoh | J mol-1 | 68200 - 75500 | 72100 |
| Glass Transition Temperature Tg | K | 324 - 331 | 330 |
| Molar Heat Capacity Cp | J (mol K)-1 | 241.2 - 257.8 | 248.5 |
| Entanglement Molecular Weight Me | g mol-1 | 1175 - 2100 | 1650 |
| Index of Refraction n | none | 1.55 - 1.57 | 1.56 |
Last updated: February 27, 2016