화학공학소재연구정보센터
Molecular Crystals and Liquid Crystals, Vol.669, No.1, 106-113, 2018
Unusual alignment during wet coating of oligo(phenylene vinylene)s thin films
Were formed anisotropic thin films of oligo(p-phenylene vinylene) dye on the surface of rubbed nylon during rod-coating from chloroform and chlorobenzene solutions. The order parameter and alignment direction of films depend on the solvent type and the temperature. On coating from chloroform solution molecules in the dye film align perpendicular and parallel to rubbing direction at temperatures below 40 degrees C and above 60 degrees C, correspondingly. Homogeneously oriented anisotropic films with a dichroic ratio of more than 25 were obtained. [GRAPHICS] .