| http://www.w3.org/ns/prov#value | - wherein R1 represents a hydrogen or a methyl group; and R2 represents an organic chain containing at least one oxyalkylene group and the organic chain may be linear, branched or cyclic and may contain one or more atoms other than carbon, hydrogen or oxygen and/or a copolymer comprising at least one of the above compounds as a co-monomer (hereinafter, the above polymer and copolymer will be general
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