| http://www.w3.org/ns/prov#value | - c hydrocarbon radical, particularly an alkylene or alkylidene radical having from 1 to 6 carbon atoms or a cycloalkylidene or cycloalkylene radical having up to and including 9 carbon atoms, O, CO, SO2, S or a direct bond, with the proviso that when R1 is SO2 then repeating unit (II) is not the same as repeating unit (I), E' is the residuum of a benzenoid compound having an inert electron withdraw
|
