液晶メソゲンとオリゴエチレンオキサイドを側鎖に持つランダム共重合体の親水－疎水ラメラ構造とその配向制御

抄録

We synthesized a liquid crystalline random copolymer having azobenzene mesogen and oligo ethylene oxide side chains (P6AzAC-r-PEO4.5MA). P6AzAC-r-PEO4.5MA exhibits smectic liquid crystal (LC) phase. Grazing incidence small angle X-ray scattering (GISAXS) measurement revealed that the smectic lamellar structure was formed in parallel to the substrate plane in P6AzAC-r-PEO4.5MA thin films. We prepared the P6AzAC-r-PEO4.5MA film with addition of poly(octadecyl methacrylate)-blockpoly(azobenzene methacrylate) (PODMA-b-P5Az10MA). In the resulting film, it was found that surface segregation of added-PODMA-b-P5Az10MA layer induced vertical aligned lamella structure of P6AzAC-r-PEO4.5MA by GISAXS measurement.