Investigation of Polypeptide Liquid Crystal under ac Electric Field

Abstract

Using polarizing microscopy, we investigated the deveopment of banded texture under low frequency electric field on liquid crystalline solutions of poly(γ-benzyl L-glutamate)(PBLG). We find a steady state striped texture is produced in some frequency region. Here we present a model for the spatial distribution of molecular orientation, consistent with the experimental results of time resolved optical pattern in the steady state striped texrure under an AC electric field.