NEUE FERROELEKTRISCHE FLUESSIGKRISTALLINE POLYMERE, EIN VERFAHREN ZU IHRER HERSTELLUNG UND IHRE VERWENDUNG IN ELEKTROOPTISCHEN BAUTEILEN

摘要

Ferroelectric, liquid-crystaline polymers contain repeating units of the formula (I) IMAGE in which the symbols have the following meanings: B=a group having at least one chiral center, of the formula IMAGE IMAGE IMAGE IMAGE in which R6, R7 and R8 are identical or different and are H, CH3, OCH3, F, Cl or Br, and at least one of the groups R6, R7 and R8 must be H and X=H, F, Cl or Br and R9=H or C1-C10-alkyl, Y=H, CH3 or F, R1=for example a straight-chain or branched alkyl having 1 to 16 carbon atoms a=2 to 20, preferably 6 to 12 b, c, d, e and f=0 or 1 with the proviso that d+e+f=2 or 3 A1, A2, A3=for example, 1,4-phenylene or 2,5-pyridinediyl, M1, M2 and M3=for example CO-O, or O-CO, and G=for example, a straight-chain or branched alkylene having 1 to 16 carbon atoms.