Table 2.
Examples of ionically conductive (IC) polymers bearing sulfonic groups previously used by the Kumbar laboratory [62]. IEC = ion exchange capacity; SPEEK = sulfonated poly-ether ether ketone; sulfonated SPES = poly (ether sulfone); SPPO = sulfonated poly (phenylene oxide); SPMVEMA/PVA = sulfonated poly (methyl vinyl ether-alt-maleic anhydride)/poly vinyl alcohol.
| Polymers | % water content | IEC m equiv./g | Membrane conductivity mS/cm |
|---|---|---|---|
| SPEEK | 31.87 | 1.100 | 35.39 |
| SPES | 20.00 | 0.308 | 10.29 |
| SPPO | 48.00 | 1.75 | 53.55 |
| SPMVEMA/PVA | 38.5 | 0.447 | 29.51 |