Antiferroelectric behaviour of achiral mesogenic polymer mixturesReport as inadecuate




Antiferroelectric behaviour of achiral mesogenic polymer mixtures - Download this document for free, or read online. Document in PDF available to download.

Resumen

X-ray structure determination and pyroelectric and piezoelectric measurements have been carried out on mesogenic mixtures composed of achiral side chain polymers and their monomers. Certain mixtures show antiferroelectric polarization hysteresis loops in the mesophase which was shown to be a bilayered smectic C, while the two components of the mixtures taken alone show no antiferroelectricity. The results obtained on the polymer-monomer mixtures are interpreted in terms of the smectic C structure with alternating tilt which, from a symmetry viewpoint, is allowed to be antiferroelectric. The antiferroelectric mixtures, on being cooled to the glassy state under a d.c. electric field applied, reveal high pyroelectric coefficients with prospects for application as IR detectors.Nota general

Artículo de publicación ISI



Author: Yablonskii, S. V.; - Ostrovsky, B. I.; - Beresnev, L. A.; - Blinov, L. M.; - Soto Bustamante, Eduardo; - Haase, W.; -

Source: http://repositorio.uchile.cl/



DOWNLOAD PDF




Related documents