| http://www.w3.org/ns/prov#value | - A water-insoluble copolymer containing at least 95% vinylpyrrolidone may be prepared directly by the polymerization of vinylpyrrolidone in the presence of a polyunsaturated crosslinking monomer such as a dimethacrylate, e.g. ethylene glycol dimethacrylate, triethylene glycol dimethacrylate, trimethylolpropane trimethacrylate and the like, a polyallyl compound such as diethylene glycol bisallyl car
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