Chrial Smectic Side‐chain Copolymers and their Properties

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Abstract
Copolymers have been synthesized in which chiral monomer units are combined with those of a tilted smetic homopolymer. The copolymers with the proportion of chiral units not exceeding 37% form a S phase and have therefore ferroelectric properties. Temperature dependences of the pyroelectric coefficient, spontaneous polarization and relaxation time have been mesured for a series of ferroelectric LC copolymers.