Mechanism of electro-optical switching hysteresis for (polymer/liquid crystal) composite films

Hirotsugu Kikuchi, Jun Ichiro Nishiwaki, Tisato Kajiyama

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

The relationship between the hysteresis characteristics of electro-optical switching and the compatibility at the polymer–low molecular weight liquid crystal (LC) interface was studied for the (polymer/LC) composite film prepared by a solvent cast method. The interfacial phase-mixing behavior between polymer and LC components was evaluated on the basis of the dielectric relaxation on an interfacial polarization at the polymer–LC interface and FT-IR ATR spectra. When the polymer was not compatible with LC even in its isotropic state, no hysteresis on the applied voltage-light transmittance relationship was detected for the electro-optical switching. It is suggested that the phase-mixing at the polymer–LC interface induced upon the application of an electric field is a possible mechanism affecting the electro-optical switching hysteresis.

Original languageEnglish
Pages (from-to)1246-1256
Number of pages11
JournalPolymer Journal
Volume27
Issue number12
DOIs
Publication statusPublished - Jan 1 1995

Fingerprint

Liquid crystal polymers
Composite films
Liquid crystals
Hysteresis
Liquid Crystals
Dielectric relaxation
Polymers
Molecular weight
Electric fields
Polarization
Electric potential
liquid crystal polymer

All Science Journal Classification (ASJC) codes

  • Polymers and Plastics
  • Materials Chemistry

Cite this

Mechanism of electro-optical switching hysteresis for (polymer/liquid crystal) composite films. / Kikuchi, Hirotsugu; Nishiwaki, Jun Ichiro; Kajiyama, Tisato.

In: Polymer Journal, Vol. 27, No. 12, 01.01.1995, p. 1246-1256.

Research output: Contribution to journalArticle

Kikuchi, Hirotsugu ; Nishiwaki, Jun Ichiro ; Kajiyama, Tisato. / Mechanism of electro-optical switching hysteresis for (polymer/liquid crystal) composite films. In: Polymer Journal. 1995 ; Vol. 27, No. 12. pp. 1246-1256.
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