Table 1. Mechanical Property and IEC of the Composite Membranes.
| sample designation | tensile strength (RT, MPa) | elongation at break (RT, %) | IEC at 25 °C (meq·g–1) |
|---|---|---|---|
| QPPO | 9.3 ± 0.5 | 25.3 ± 1.2 | 2.33 ± 0.03 |
| QPPO/QSiO2-1 | 35.1 ± 2.1 | 25.8 ± 3.2 | 2.56 ± 0.02 |
| QPPO/QSiO2-3 | 42.1 ± 0.8 | 22.7 ± 1.1 | 2.80 ± 0.03 |
| QPPO/QSiO2-5 | 31.3 ± 2.8 | 15.2 ± 2.0 | 3.05 ± 0.04 |
| QPPO/QSiO2-7 | 29.0 ± 1.4 | 13.1 ± 1.8 | 3.21 ± 0.02 |
| QPPO/QSiO2-10 | 25.4 ± 3.6 | 9.25 ± 1.7 | 3.13 ± 0.03 |