Contact angle of different membranes.
| Membranes | Contact angle (°) |
|---|---|
| PSF | 75.1 ± 0.6 |
| PEI-CC/PSF | 76.3 ± 0.3 |
| PEI/PIP-CC/PSF | 64.2 ± 0.6 |
| PIP-CC/PSF | 58.8 ± 0.1 |
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