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Mechanical properties of the polyimide films after saturated with water.
| Sample | Tensile strength/MPa | Elongation at break/% | Elastic modulus/GPa |
|---|---|---|---|
| OPI-water | 134.6 ± 2.5 | 13.5 ± 2.1 | 3.07 ± 0.39 |
| 5O5DPI-water | 155.9 ± 3.9 | 11.7 ± 1.9 | 3.70 ± 0.37 |
| DPI-water | 176.0 ± 3.5 | 9.6 ± 1.4 | 4.27 ± 0.37 |
