| http://www.w3.org/ns/prov#value | - itrile having one of the following structural formulas, if prepolymer (XVII), (XVIII) or (XIX) is to be made: or without a nitrile if prepolymer (XX) is to be made, wherein n is an integer from 0 to 30, depending on the chemical structural formula or the solubility of the aromatic nitrile-modified prepolymer in organic solvents; n1 is either 0 or greater than 1, n2 is a positive integer greater th
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