Patent ID: 8581241

Claim:
A polymer compound comprising a repeating unit represented by the following formula (II): wherein p indicates an integer of from 0 to 3; Ar 21 and Ar 22 each independently represent a direct bond, an aromatic hydrocarbon group optionally having a substituent, or an aromatic heterocyclic group optionally having a substituent; Ar 23 to Ar 25 each independently represent an aromatic hydrocarbon group optionally having a substituent, or an aromatic heterocyclic group optionally having a substituent; T 2 represents a group containing a group represented by the following formula (IV); provided that Ar 21 and Ar 22 are not direct bonds at the same time; further, when Ar 21 , Ar 22 and Ar 24 are fluorene rings optionally having a substituent, said fluorine ring does not have a group containing a crosslinking group as the substituent; the cross-linking group is any of the groups selected from the following group of cross-linking groups; wherein in R 21 to R 25 each independently represent a hydrogen atom or an alkyl group, Ar 41 represents an aromatic hydrocarbon group optionally having a substituent, or an aromatic heterocyclic group optionally having a substituent, the benzocyclobutene ring may have a substituent, and the substituents may together form a ring, wherein the benzocyclobutene ring in the formula (IV) may have a substituent; and the substituents may bond to each other to form a ring.