| abstract |
The invention concerns mixtures of liquid-crystalline compounds containing at least two different substances of general formula (I) in which the radicals Z1, Z2, independently of one another, mean a polymerisable group, Y1, Y2, independently of one another, mean a direct bond, -O-, -COO-, -OCO- or -S-, A1, A2, independently of one another, mean a spacer, and R?1, R2 and R3¿ mean conventional substituents. The invention further concerns novel compounds of the given formula, in which at least two of the radicals Z?1, Z2, Y1, Y2, A1 or A2¿ do not correspond. The mixtures and compounds according to the invention are suitable, inter alia, as a base material for colouring effect and piezo materials, preferably in chirally doped form. |