Patent ID: 8304555

Claim:
A polymer compound represented by the following formula 2: wherein R 5 to R 8 are the same as or different from each other, and are each independently a hydrogen atom, a hydroxyl group, a halogen atom, a nitrile group, a nitro group, an ester group, an ether group, an amino group, an imide group, a silane group, a thioester group, a substituted or unsubstituted, linear, branched, or cyclic alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted, linear, branched, or cyclic alkoxy group having 1 to 20 carbon atoms, a substituted or unsubstituted, linear, branched, or cyclic thioalkoxy group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heteroaryl group; two or more carbon atoms which are not adjacent to each other in R 5 to R 8 may be linked by O, S, NH, —NR o —, SiR o R oo —, —CO—, —COO—, —OCO—, —OCOO—, —S—CO—, —CO—S—, —CH═CH—, a substituted or unsubstituted aryl group or a substituted or unsubstituted heteroaryl group, in which R o and R oo are the same as or different from each other, and are each independently a hydrogen, an aryl group, or an alkyl group having 1 to 12 carbon atoms; two or more of R 5 to R 8 may be bonded to each other to form a ring, R 5 to R 8 are not a hydrogen atom at the same time, wherein x is a real number with 0<x≦1, y is a real number with 0≦y<1, z is a real number with 0≦z<1, and x+y+z=1; n is an integer of 10 to 1000; and A and B are the same as or different from each other, and are each independently an aromatic group, a bivalent heterocyclic group having a conjugated structure, or an acyclic group as follows: R′ and R″ are the same as or different from each other, and may be each independently a hydrogen atom; a linear, branched, or cyclic alkoxy group; a nitrile group; and the dotted line is a portion linked to a backbone of the formula 2.