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Chrial Smectic Side‐chain Copolymers and their Properties
Author(s) -
Kozlovsky M. V.,
Bata L.,
FodorCsorba K.,
Shibaev V. P.
Publication year - 1992
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.2170270825
Subject(s) - copolymer , ferroelectricity , pyroelectricity , side chain , monomer , materials science , polymer chemistry , polarization (electrochemistry) , phase (matter) , chemistry , polymer , organic chemistry , composite material , dielectric , optoelectronics
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 F *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.