| http://www.w3.org/ns/prov#value | - in which R??? may be chosen from hydrogen and CH3, B may be an ethylenoxy group, n may be chosen from 0 or an integer from 1 to 100, R may be a hydrocarbon-based group chosen from alkyl, arylalkyl, aryl, alkylaryl and cycloalkyl radicals comprising from 8 to 30 carbon atoms, such as from 10 to 24 carbon atoms, and for example from 12 to 18 carbon atoms.
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