| 摘要 |
The invention provides low molecular weight or polymeric organic materials in which at least one hydrogen atom is replaced by a group of the formula (A) where R is a straight-chain, branched or cyclic alkyl, alkoxyalkyl, alkoxy or thioalkoxy group having from 1 to 20 carbon atoms, C4-C18-aryl or C2-C10-alkenyl, in each of which one or more hydrogen atoms may be replaced by halogen, such as Cl or F, or CN, and one or more nonadjacent carbon atoms may be replaced by -O-, -S-, -CO-, -COO- or -O-CO-, Z is -O-, -S-, -CO-, -COO-, -O-CO- or a bivalent group -(CR1R2)n- in which R1 and R2 are each independently hydrogen, a straight-chain, branched or cyclic alkyl, alkoxy, alkoxyalkyl or thioalkoxy group having from 1 to 20 carbon atoms, C4-C18-aryl or C2-C10-alkenyl, in each of which one or more hydrogen atoms may be replaced by halogen, such as Cl or F, or CN, and one or more nonadjacent carbon atoms may be replaced by -O-, -S-, -CO-, -COO- or -O-CO-, X is a bivalent group -(CR1R2)n- in which R1 and R2 are each independently hydrogen, a straight-chain, branched or cyclic alkyl, alkoxy, alkoxyalkyl or thioalkoxy group having from 1 to 20 carbon atoms, C4-C18-aryl or C2-C10-alkenyl, in each of which one or more hydrogen atoms may be replaced by halogen, such as Cl or F, or CN, and n is an integer from 1 to 20, preferably from 3 to 10, in particular 3 or 6, with the proviso that the number of these A groups is limited by the maximum number of available, i.e. substitutable, hydrogen atoms and also their use for producing optionally multilayered structured light emitting diodes, lasers, solar cells, waveguides or integrated circuits.
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