| abstract |
Poly(p-arylene-vinylenes) comprising repeating units of the formula (I),where the symbols and indices have the following meanings:Y1, Y2, Y3: identical or different, CH, N;Aryl: an aryl group having from 4 to 14 carbon atoms;R', R'': identical or different, each a straight-chain or branched or cyclic alkyl or alkoxy group having from 1 to 20 carbon atoms, where one or more non-adjacent CH2 groups may be replaced by -O-, -S-, -CO-, -COO-, -O-CO-, -NR1-, -(NR2R3)+-A-, or -CONR4- and one or more H atoms may be replaced by F, or else CN, F, Cl or an aryl group having from 4 to 14 carbon atoms which may be substituted by one or more nonaromatic radicals R';R1, R2, R3, R4: identical or different, aliphatic or aromatic hydrocarbon radicals having from 1 to 20 carbon atoms or else H;A-: a singly charged anion or its equivalent;m: 0, 1 or 2;n: 1, 2, 3, 4 or 5;are suitable as electroluminescence materials. |