prov:value
| - --NR8 --; R6 is a hydrogen atom, H--CH2)n, a cyano group or a carbamoyl group; R7 is a hydrogen atom, a chlorine atom, a bromine atom, H--CH2)n, H--CH2)n O--, a nitro group, a sulfo group, a carboxy group, a cyano group, a phenyl group, a phenoxy group, an acetyl group, or a benzoyl group; and R8 is H--CH2)n or ##SPC18##said polymer containing functional groups attached to the polymer chain of sa
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