Poly (3 - substituted thiophene) compounds as well as intermediates in the synthesis and manufacturi

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PROBLEM TO BE SOLVED : To provide : a new compound that is poly(3-substituted thiophene) having a siloxane bond soluble in a hydrocarbon-based organic solvent; and its synthetic intermediate.SOLUTION : There is provided a poly(3-substituted thiophene) having a siloxane bond represented by the general formula (II) in the figure, where Rto Rare identical or different in the siloxane bond, and are each hydrogen, a hydrocarbon group, or an alkoxy. The poly(3-substituted thiophene) compound has the siloxane bond in contrast to a conventional HT-type poly(3-substituted thiophene) compound having an alkyl substituent, and thus is soluble in a hydrocarbon-based organic solvent.