| http://www.w3.org/ns/prov#value | - Examples of those now known in the art are polyacrylonitrile fibers which may be modified by grafting moieties thereon such as polyvinyl alcohol chains, polyvinyl alcohol itself, hydrophilic polyurethane, poly(alkyl phosphonates), partially hydrolyzed polyacrylamides (e.g., poly(N-N-dimethyl acrylamide), sulfonated polystyrene, or a class of poly(alkylene oxide).
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