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Element composition obtained by XPS and the grafting amount of the original and modified PES membranes.
| Membrane | C (%) | O (%) | N (%) | S (%) | C/N | GA (μg/cm2) |
|---|---|---|---|---|---|---|
| PES | 72.20 | 18.01 | 4.89 | 4.70 | 14.76 | – |
| PES-g-DMAEMA-BB | 77.89 | 16.14 | 3.83 | 2.14 | 20.34 | 193.6 |
| PES-g-DMAEMA-OB | 76.88 | 15.99 | 3.49 | 3.64 | 22.05 | 203.8 |
| PES-g-DMAEMA-DB | 76.85 | 17.29 | 3.08 | 2.77 | 24.95 | 560.5 |
| PES-g-DMAEMA-HB | 78.30 | 16.54 | 2.53 | 2.63 | 30.95 | 835.7 |
