Patent ID: 8618530

Claim:
A conjugated polymer comprising a repeating unit represented by formula (I), wherein said conjugated polymer comprises an insolubilizing group as a substituent, and has a weight average molecular weight (Mw) of 20,000 or more and a dispersity, Mw/Mn, where Mn indicates a number average molecular weight, of 2.40 or less: wherein: m represents an integer of 0 to 3; each of Ar 11 and Ar 12 independently represents a direct bond, an aromatic hydrocarbon group which may have a substituent, or an aromatic heterocyclic group which may have a substituent; and each of Ar 13 to Ar 15 independently represents an aromatic hydrocarbon group which may have a substituent, or an aromatic heterocyclic group which may have a substituent, provided that both Arâ€‚and Ar 12 do not represent a direct bond, and said conjugated polymer has, as a substituent, a group comprising at least one insolubilizing group in one molecule, wherein said insolubilizing group is a crosslinking group represented by formula (II): wherein the benzocyclobutene ring may have at least one substituent, and substituents may combine with each other to form a ring.