Table 1.
Composition of casting solutions.
| Membrane | PEI (g) | NMP (g) | Ben-(SPB) (g) | PVP (g) | W* (wt%) |
|---|---|---|---|---|---|
| PEM-0 | 16.5 | 78.5 | 0 | 4 | 0 |
| PEM-1 | 16.5 | 78.3 | 0.16 | 4 | 1 |
| PEM-2 | 16.5 | 78.1 | 0.33 | 4 | 2 |
| PEM-3 | 16.5 | 78.0 | 0.49 | 4 | 3 |
*W means mass ratio of modified bentonite to PEI.
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