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Determination of nondispersive and dispersive components of the surface energy of neat PMMA and IL-modified PMMA materials from contact angles with water and diiodomethane.
| Sample | θH2O (°) | θCH2I2 (°) | γt (mN·m−1) | γd (mN·m−1) | γnd (mN·m−1) |
|---|---|---|---|---|---|
| PMMA | 71 ± 1 | 40.1 ± 1.7 | 40.7 | 30.3 | 10.4 |
| PMMA/(C4mIm)(PF6) | 72 ± 1 | 27.0 ± 1.1 | 45.3 | 40.1 | 5.2 |
| PMMA/(N1,1,1,4)(PF6) | 72 ± 1 | 26.6 ± 1.7 | 45.3 | 40.5 | 4.8 |
| PMMA/(N1,1,1,6)(Br) | 66 ± 1 | 34.0 ± 0.9 | 44.6 | 35.1 | 9.5 |
| PMMA/(N1,1,1,6)(TFSI) | 73 ± 1 | 40 ± 0.7 | 43.0 | 37.8 | 5.2 |
