| abstract |
The invention relates to poly(p-arylene vinylenes), containing repeating unit of formula (I), wherein the symbols and indices have the following meanings; Y<1>, Y<2>, Y<3> are the same or different and means CH, N; aryl stands for an aryl group with 14 C atoms; R', R'' are the same or different and mean a straight-chained, branched or cyclic alkyl or alkoxy group with 1 to 20 atoms, wherein one or several non-adjacent CH2 groups can be substituted by -O-, -S-, -CO-, -COO-, -O-CO-, -NR<1>, -(NR<2>R<3>)<+>-A<->, or -CONR<4>-, and wherein one or several H atoms can be substituted by F; R', R'' are CN, F, Cl or an aryl group with 4 to 14 C atoms, which can be substituted by one or several nonaromatic radicals R', R<1>, R<2>, R<3>, R<4> are the same or different and mean aliphatic or aromatic hydrocarbon radicals with 1 to 20 C atoms or also H. A- is a single charged anion or the equivalent thereof; m means 0, 1 or 2; n stands for 1, 2, 3, 4 or 5. Said substances are suitable as electroluminescent materials. |