| Abstract: | We have prepared several ferroelectric polysiloxanes with two and three benzenic ring moieties. The siloxane backbone is favorable to ferroelectric S phase formation, and the chiral S phase is observed in all of the polymers. Some of the spontaneous polarizations are very high, more than 100 nC/cm2 (10?3 C/m2) and the response times are less than 1 ms near the I-S or Sa–SS transition. Several binary mixtures between FLC copoly-siloxanes and different low molar mass LC have been studied, and have shown the complete miscibility of these two components and richer mesomorphic sequences than for the polymers alone; for example, an N*–Sa sequence. |
