Neue polymerisierbare flüssigkristalline Verbindungen

摘要

The invention concerns polymerisable, liquid-crystalline compounds of general formula (I) in which the Z radicals, independently of one another, mean a polymerisable group having the structure CH2=CCl-, CH2=C(CH3)- or styryl; the Y radicals, independently of one another, mean a direct bond, -O-, -COO-, -OCO- or -S-; the A radicals, independently of one another, mean a spacer having 5 to 30 carbon atoms in which every third carbon atom can be replaced by 0, S, NH, N(CH3) or COO; R<1>, R<2> and R<3>, independently of one another, mean conventional substituents. The compounds of the invention are suitable, inter alia, for preparing colouring agents ordered as cholesteric liquid crystals.