| http://www.w3.org/ns/prov#value | - m???2, such that when m=2, C is a radical of the general formula CnH2n, in which n is a whole number from 1 to 40 and at least one methylene group may be substituted by oxygen or at least one hydrogen may be substituted by alkyl or alkoxy groups, said alkyl or alkoxy groups having 1 to 20 carbon atoms, when m>2, C is selected from the group consisting of oligopropylene oxide, oligobutylene oxide,
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