Determination of Pore Size Distribution of Nafion/Sulfated β-Cyclodextrin Composite Membranes as Studied by H Solid-State NMR Cryoporometry


Nafion/sb-CD membranes were prepared by mixing 5 wt% Nafion solution with H-form sulfated β-cyclodextrin (sb-CD), and their water uptake, ion exchange capacity (IEC), and ionic cluster size distribution were measured. The water uptake and IEC of the membrane increased with an increase in the sb-CD content. The SAXS experiments confirmed that an increase in… (More)


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