Patent ID: 8471064

Claim:
A polymer comprising one or more identical or different units selected from the group consisting of: wherein L is H, halogen, or optionally fluorinated, linear or branched alkyl or alkoxy having 1 to 12 C atoms; and L′ is optionally fluorinated, linear or branched alkyl or alkoxy having 1 to 12 C atoms; and one or more identical or different units selected from the group consisting of (II1), (II2), (II3), (II4), (II5), (II6), (II7), (II8), (II9), (II10), (II11), (II12), (II13), (II14), (II17), and (II18): wherein R, R′, and R″ are, independently of each other, and in the case of multiple occurrence, independently of one another, identical or different groups selected from the group consisting of H, halogen, —CN, —NC, —NCO, —NCS, —OCN, —SCN, —C(═O)NR 0 R 00 , —C(═O)X, —C(═O)R 0 , —NH 2 , —NR 0 R 00 , —SH, —SR 0 , —SO 3 H, —SO 2 R 0 , —OH, —NO 2 , —CF 3 , —SF 5 , optionally substituted silyl, or carbyl or hydrocarbyl having 1 to 40 C atoms, wherein said carbyl or hydrocarbyl is optionally substituted and optionally comprises one or more hetero atoms, and wherein the groups R′ and R″ optionally define a spiro group with the fluorene moiety to which they are attached; R 0 is H or an optionally substituted carbyl or hydrocarbyl group optionally comprising one or more hetero atoms; when the comonomer unit is formula (II1), only one of R′ and R″ is hydrogen.