Voltage-dependent phase transition and pyroelectric effect in a new chiral smectic polymer

A new chiral smectic side chain polymer has been synthesized showing a ferroelectric Sm C ∗ phase between the isotropic and smectic B phases. The clearing phase transition (on heating) depends on the d.c. voltage applied. This behaviour could be explained by some theoretical consideration. Pyroelect...

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Bibliographic Details
Published in:European polymer journal 1995-10, Vol.31 (10), p.993-998
Main Authors: Kozlovsky, M.V., Pikin, S.A., Haase, W.
Format: Article
Language:English
Subjects:
Applied sciences
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Dielectric, piezoelectric, ferroelectric and antiferroelectric materials
Dielectrics, piezoelectrics, and ferroelectrics and their properties
Electrical, magnetic and optical properties
Exact sciences and technology
Liquids and liquid crystals
Organic polymers
Physicochemistry of polymers
Physics
Properties and characterization
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Summary:A new chiral smectic side chain polymer has been synthesized showing a ferroelectric Sm C ∗ phase between the isotropic and smectic B phases. The clearing phase transition (on heating) depends on the d.c. voltage applied. This behaviour could be explained by some theoretical consideration. Pyroelectric measurements give the maximum value of spontaneous polarization for the polymer P s ∼- 4.0 nC/cm 2.
ISSN:0014-3057
1873-1945
DOI:10.1016/0014-3057(95)00045-3