| 摘要 |
Disclosed are polymerizable liquid-crystalline compounds of the general formula (I)where A<1 >and A<2 >are identical or different and are each a crosslinkable group; the radicals X are identical or different and are each a single bond, -O-, -S-, -C=N-, -O-CO-, -CO-O-, -O-CO-O-, -CO-NR-, -NR-CO-, -NR-, -O-CO-NR, -NR-CO-O-, -CH2-O- or -NR-CO-NR, in which R is H or C1-C4-alkyl; and M is a mesogenic group, a process for their preparation and their use for preparing cholesteric phases.
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