Table 2.
Thermal and dielectric properties of polycyanurate, TPI, and semi-IPNs.
| Thermosets | Tg (°C) a | T5% (°C) b | Dielectric Constant c | Dielectric Loss c |
|---|---|---|---|---|
| Polycyanurate | 310 | 422 | 3.25 | 0.0077 |
| Semi-IPN−3 | 308 | 419 | 3.22 | 0.0070 |
| Semi-IPN−5 | 310 | 421 | 3.18 | 0.0060 |
| Semi-IPN−10 | 312 | 425 | 3.13 | 0.0054 |
| Semi-IPN−15 | 311 | 429 | 3.07 | 0.0052 |
| Semi-IPN−20 | 311 | 428 | 3.00 | 0.0050 |
| TPI | 360 | 550 | 2.85 | 0.0050 |
a Measured by DMA with a heating rate of 3 °C min−1. b Measured by thermogravimetric analysis (TGA) in air with a heating rate of 10 °C min−1. c Measured by impedance analyzer; the values were taken at 8 × 105 Hz.