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Tg of UPE backbones. @, Tg not observed, value is Tm.
| Backbone | Tg/°C | Range/°C |
|---|---|---|
| PPI | −30.1 | −32.8 to −28.0 |
| PPI (crosslinked) | −51.2 | −54.3 to −48.9 |
| PBI | −41.7 | −44.8 to −39.6 |
| PBFu @ | 135.4 | 112 to 138 |
| PBIBS | −41.3 | −43.5 to −39.8 |
| PGI | −20.9 | −25.5 to −16.4 |
| PPISI | −16.6 | −21.0 to −11.8 |
