Extended Data Fig. 4: Water mobility revealed by PFG-NMR.
From: Selective ion transport through hydrated micropores in polymer membranes
a, Water self-diffusion coefficients as a function of observation time. b-e, Plots of mean squared displacement (MSD) versus observation time. Fits 1 and 2 correspond to linear fitting below and above the observation time of 8 ms, respectively. cPIM-BP exhibits a clear deviation from linearity between MSD and observation time within the studied timescale, suggesting increased diffusion restriction compared to other cPIMs. As PFG-NMR probes long-range diffusion, this greater restriction is likely the result of both smaller pore sizes and the deficiency in the interconnectivity of hydrated phases.
