Sv. Yablonskii et al., Corona-charged thin films composed from antiferroelectric solid mixtures of achiral side-chain liquid crystalline polymers and their monomers, FERROELECTR, 247(4), 2000, pp. 343-354
The results of investigations on corona charged thin mesogenic films consis
ting of solid mixtures of achiral liquid crystalline side-chain polymers an
d their monomers are presented. A pyroelectric modulation and a low frequen
cy piezoelectric technique were used to confirm the polar properties of the
se compounds. The pyroelectric coefficient gamma and the apparent longitudi
nal piezoelectric coefficient d(33) Were measured in the glassy state to be
3.2 nC/cm(2) K and 9 pC/N. The pyroelectric currents versus modulation fre
quency for various polar materials were studied for comparison.