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Membrane permeability of some model compounds through macroporous membranes

Membranes consisting of various amounts of poly(2‐vinylpyridine) (PVN) and its oxide PVNO were prepared by casting from ethanol and pyridine solutions. Resultant membranes exhibited effective diffusion coefficients in the range of 10−9−10−11 cm2 s−1. Effective diffusion coefficients were affected by the casting solvent, and by the hydrophilic polymer (PVNO) content.