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| Pre-polymer | t a | T g b | T d b | M n c | M w c | DP | Monomer ratiod |
|---|---|---|---|---|---|---|---|
| EG–F | 3.0 | −54 | 370 | 350 | 620 | 2.8 | 1 : 1.02 |
| dEG–F | 4.5 | −42 | 370 | 510 | 860 | 3.0 | 1 : 0.90 |
| PEG200–F | 6.0 | −47 | 380 | 930 | 2680 | 3.3 | 1 : 1.03 |
| PEG400–F | 8.0 | −52 | 380 | 770 | 2160 | 6.0 | 1 : 1.14 |
Reaction time in h at 165 °C, followed by 10 min under high vacuum (5 mm Hg).
In °C.
In Da.
Diol/fumaric acid ratio determined by 1H NMR.
