| http://www.w3.org/ns/prov#value | - Examples of such permselective materials useful for such separations include, but are not limited to, hydrophilic materials, including polyvinyl alcohol, cellulosic materials, chitin and derivatives thereof; polyurethanes, polyamides, polyamines, poly(acrylic acids), poly(acrylates), poly(vinyl acetates), and polyethers; hydrophobic materials such as natural rubber, nitrile rubber, polystyrene-but
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