| abstract |
Poly(arylenevinylenes) comprising at least 20% of recurring units of the formula (I), n n n where the symbols and indices have the following meanings: n Aryl: is an aryl group having 4 to 14 carbon atoms; n R′: is a substituent which is either in the labeled phenylene position 5 or 6 and is CN, F, Cl, N(R 1 R 2 ) or a straight-chain, branched or cyclic alkyl, alkoxy or thioalkoxy group having 1 to 20 carbon atoms, in which, in addition, one or more H atoms may be replaced by F; n R″: are identical or different and are CN, F, Cl or a straight-chain, branched or cyclic alkyl or alkoxy group having 1 to 20 carbon atoms, where one or more non-adjacent CH 2 groups may be replaced by —O—, —S—, —CO—, —COO—, —O—CO—, —NR 1 —, —(NR 2 R 3 ) + —A − or —CONR 4 —, and where one or more H atoms may be replaced by F, or an aryl group having 4 to 14 carbon atoms, which may be substituted by one or more non-aromatic radicals R′; n R 1 , R 2 , R 3 , R 4 are identical or different and are H or an aliphatic or aromatic hydrocarbon radical having 1 to 20 carbon atoms; n A − : is a singly charged anion or an equivalent thereof; and n n: is 0, 1, 2, 3, 4 or 5, n are suitable as electroluminescent materials. |