prov:value
| - t 20 repeat alkyleneoxy units, although the number of repeat alkyleneoxy units can be outside of these ranges, wherein R4 and R5 can be joined together to form a ring, R6, R7, R8, R9, R10, and R11 each, independently of the other, is a hydrogen atom, an alkyl group (including linear, branched, saturated, unsaturated, cyclic, and substituted alkyl groups, and wherein hetero atoms, such as oxygen, n
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