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Thermal properties of PPZ FR and PI films.
| Samples | PPZ (wt.%) | Tg (°C) a | T10% (°C) b | Tmax (°C) b | Rw700 (%) c |
|---|---|---|---|---|---|
| PPZ | 100 | ND d | 381.3 | 438.2 | 8.2 |
| PI-1 | 0 | 260.6 | 487.3 | 527.7 | 10.0 |
| PI-2 | 5 | 244.8 | 470.2 | 501.7 | 17.1 |
| PI-3 | 10 | 227.4 | 411.6 | 448.9 | 58.3 |
| PI-4 | 15 | 220.9 | 405.5 | 413.2 | 56.3 |
| PI-5 | 20 | 219.8 | 405.1 | 407.1 | 55.2 |
| PI-6 | 25 | 207.3 | 406.6 | 405.0 | 50.8 |
aTg: Glass transition temperature; bT10%: Temperatures at 10% weight loss; cRw700: Residual weight ratio at 700 °C in nitrogen; d Not detected.
