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Unusual alignment during wet coating of oligo(phenylene vinylene)s thin films |
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| Authors: | A. V. Stankevich A. A. Muravsky A. A. Murauski V. E. Agabekov |
| Affiliation: | 1. Institute of Chemistry of New Materials, NAS Belarus, St. F.Skoriny 36, 220141, Minsk, Belarusandr.stankevich@gmail.com alexander.muravsky@ichnm.basnet.by anatoli_murauski@yahoo.com mixa@ichnm.basnet.by;2. Institute of Chemistry of New Materials, NAS Belarus, St. F.Skoriny 36, 220141, Minsk, Belarus |
| Abstract: | 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?°C and above 60?°C, correspondingly. Homogeneously oriented anisotropic films with a dichroic ratio of more than 25 were obtained. |
| Keywords: | Alignment wet coating order parameter temperature effect |