| 摘要 |
The invention relates to a one-step process for the preparation of acryloyl group-containing liquid-crystalline monomers of the general formula (1)in which mesogenic alcohols of the general formula (2)are reacted with esters of 3-chloropropionic acid of the general formula (3)with elimination of HCl, whereacrylate is an acrylate radical,ClPr is a 3-chloropropionate radical,A1 are identical or different alkyl chain spacers having 2-20 carbon atoms, in which the carbon chain may be interrupted by non-adjacent ether, thioether, or imino groups,A2 are radicals A1 or single chemical bonds,M is a mesogenic group,X is a leaving group,Z are alkyl radicals or crosslinkable groups,Y1 and Y2, independently of one another, are a single chemical bond, -O-, -S-, -O-CO-, -CO-O-, -O-CO-O, -CO-NR1-, -NR1-CO-, -O-CO-NR1-, -NR1-CO-O- or -NR1-CO-NR1-,R1 is hydrogen or a C1-C4-alkyl radical,n is 1, 2, 3 or 4, andm is 0, 1, 2 or 3.
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