Table 1:
Summary of thermal and mechanical properties of PET and PET co-polymers.
| Polymer | Mn (kDa) | Đ | Tg,Dsc (°C)a | Tm (°C)a | Xc (%)b | Td,5% (°C)c | Tg,DMA (°C)d | E’ (GPa)e |
|---|---|---|---|---|---|---|---|---|
| PET | 21.1 | 3.0 | 74 | 246 | 35 | 411 | 96 | 2.9 |
| 2-MeOPET-10 | 13.7 | 2.9 | 70 | 231 | 25 | 410 | 92 | 3.1 |
| 2,6-MeOPET-10 | 11.4 | 3.0 | 68 | 229 | 23 | 402 | 93 | 2.2 |
| IPPET-10 | 14.4 | 2.1 | 70 | 225 | 27 | 405 | 90 | 2.7 |
Measured by DSC from the 2nd scan at a heating rate of 10 °C min−1.
Measured by DSC from the 2nd of heating by taking the melt enthalpy, subtracting the enthalpy of cold crystallization, and dividing by 140.1 J g−1.
Temperature at 5% weight loss measured by TGA at a heating rate of 20 °C min−1.
Peak in the tan(δ) curve obtained during from DMA at rate of 3 °C min−1.
Storage modulus obtained from DMA at 30 °C.