| http://www.w3.org/ns/prov#value | - G and G???, independently, are selected from ???H, ???OH, epoxy, ???NH2, ???COOH, anhydride, ???Cl, ???Br, ???M, ???COOM (M=metals, e.g. Li, Na, K and Ca) or a polymer chain having a molecular weight of at least about 500, which can be derived from both step and chain polymerization reactions; x and y are as previously defined in connection with Formula (I); m is the mole % of divinylbenzene units
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