Patent ID: 8377570

Claim:
A conjugated polymer that is poly[2-(2′-p-methoxyphenyl-4′,5′-bis(3″-methylbutoxy))phenyl-1,4-phenylene vinylene], poly[2-(2′-p-trifluoromethyl-phenyl-4′,5′-bis(3″-methylbutoxy))phenyl-1,4-phenylene vinylene], poly[2-(2′-p-fluorophenyl-4′,5′-bis(3″-methylbutoxy))phenyl-1,4-phenylene vinylene] or poly[2-(2′-phenyl-4′,5′-bis(3″-methylbutoxy))phenyl-1,4-phenylene vinylene-co-9,9-dihexyl-2,7-fluorenylene vinylene].