prov:value
| - group consisting of hydrogen, silyl, or a substituted alkyl, alkyl ether, phenyl, benzyl, and aryl, said substituent being selected from the group consisting of epoxy, hydroxy, isocyanato, cyano, amino, silyl, carboxyl, anhydride, and acyl; and wherein R**(1) is the same as R except not H; and wherein each alkyl is independently selected from the group consisting of branched, unbranched, and cycli
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