3A12 液晶高分子コーティング膜における液晶の界面配向

概要

論文の詳細を見る
Homogeneous surface alignment of liquid crystals (5CB) is observed for the films formed by coating with the aqueous solutions of hydroxypropylcellulose (HPC) in the conditions of large coating speed and thin coating thickness. For the film formed with the isotropic ethanol solutions of HPC the 5CB molecules remains flow-induced alignment. The microstructures responsible for the homogeneous surface alignment are not confirmed in the molphological measurement of the film surface with an atomic force microscope, though the ribbing-like structure corresponding to the banded texture perpendicular to the coating direction exist on the film formed with the liquid crystalline solutions of HPC. These results suggest that the flow-induced anisotropic orientation of HPC molecules is responsible for the homogeneous surface alignment of 5CB.
日本液晶学会の論文
1998-10-12