Patent ID: 7030409

Claim:
A polythienylquinoxaline derivative represented by Formula 1 below: wherein R 1 and R 4 are each independently a hydrogen atom, a hydroxyl group, a C 1-16 linear, branched or cyclic alkyl group, or a C 1-12 linear, branched or cyclic alkoxy group; R 2 and R 3 are each independently a hydrogen atom, a hydroxyl group, a C 1-16 linear, branched or cyclic alkyl group, a C 1-12 linear, branched or cyclic alkoxy group, or a C 6-18 — aryl group of an aromatic ring or a heteroaromatic ring, wherein the aryl group may be substituted with at least one substituent selected from the group consisting of a hydroxyl group, C 1-16 linear, branched and cyclic alkyl groups, and C 1-12 linear, branched and cyclic alkoxy groups; A is NH, O or S; n is 1 or 2; and both a and b are each independently real numbers satisfying the conditions 0.01≦a/(a+b)≦0.99 and 0.01≦b/(a+b)≦0.99.