1A07 リオトロピックポリペプチド液晶の界面配向

概要

論文の詳細を見る
We found that the alignment of PBLG liquid crystals on a glass substrate depends on the relative permittivity of the solvent as well as on the molecular weight of PBLG: In a cell having the thickness of the order of 0.1 mm, a homeotropic alignment occurs when the relative permittivity of the solvent is rather high and, at the same time, the molecular weight is lower than some critical value. Otherwise, planar alignment prevails. It will be shown that this behavior can successfully be explained as due to the competition between the repulsive electrostatic interaction of polar polypeptide molecule with the glass substrate (the image force) along with the repulsive van der Waals interaction, and the excluded volume interaction of PBLG molecule with the substrate which always favors the planar alignment.
日本液晶学会の論文
1999-09-28