Preparation of langmuir-blodgett films of three-component copolymers containing chromophore groups

Langmuir-Blodgett films of three-component random copolymers of octafluoroamylmethacrylate, methacrylic acid and 6-[4-(4′-nitrobenzyliden-amino)phenoxy]hexylmethacrylate were obtained. Different lengths of side chains did not allow the formation of regular stacking of molecular layers, as was confirmed by X-ray diffraction. However, such Y-type LB films in principle can show lateral anisotropy (which is necessary for non-linear optical activity) induced by substrate dipping.