G. Scherowsky et D. Hentschel, NOVEL FERROELECTRIC LIQUID-CRYSTALS AND DOPANTS FOR INDUCED FERROELECTRIC PHASES CONTAINING 3,4-EPOXY-2-OCTANOLS AS CHIRAL UNIT, Liquid crystals, 21(4), 1996, pp. 531-541
The synthesis of a new class of chiral smectic liquid crystals is desc
ribed, along with transition temperatures, phase behaviour, spontaneou
s polarizations and related data. The general structure is shown in A,
possessing a chiral unit derived from 3,4-epoxy-2-octanol. Two of the
se new compounds show seemingly antiferroelectric behaviour. The influ
ence of the mesogenic core structure on mesophase behaviour and ferroe
lectric properties was investigated. The non-liquid crystalline repres
entatives were examined as dopants for induced ferroelectric phases in
an achiral matrix.