Masako Sakuragi

TL;DR: In this article, the alignment modulation of a nematic liquid crystal was performed by a polarization-selective photochromic reaction of surface azobenzenes, and the alignment was changed from an initial perpendicular state to a homogeneous planar state by exposure to the linearly polarized UV light.

TL;DR: In this paper, a photorecording element consisting of a transparent substrate, a molecular layer of an organic compound with the ability to change structure reversibly by virtue of light and disposed in direct contact with the transparent substrate was disclosed.

TL;DR: In this article, a static contact angle measurement was carried out for azo-modified plates before and after UV irradiation, and the results were not in line with the so-called Friedel-Creagh-Kmetz rule which claims that the alignment is governed by a mutual relationship between a substrate surface energy and surface tension of a liquid crystal.

TL;DR: In this article, a thin film of polyvinyl alcohol (PVA of different saponification degree) coated on a glass plate was subjected to a surface-selective introduction of azobenzene moieties by treatment with a solution of 4-(4-hexylphenylazo) phenoxyacetyl chloride/pyridine or 4-( 4hexyl phenylazo), phenoxybutanal /ptoluenesulfonic acid.