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Figure 5: NaCl transport through membranes. Left: membrane PET: (A) PAA membrane at pH 5.5, (A`) PAA membrane at pH 3.0, (B) P(AA-co-DEGMEM) membrane at pH 5.5, and (B`) P(AA-co-DEGMEM) membrane at pH 3.0. Right: membrane PC: (C) PAA membrane at pH 5.5, (C`) PAA membrane at pH 3.0, (D) P(AA-co-DEGMEM) membrane at pH 5.5, and (D`) P(AA-co-DEGMEM) membrane at pH 3.0.