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New bis-azo dyes and complexes of these with cobalt are synthesized and used in photo-active film polymer composites based on an octyl methacrylate:acrylonitrate (1:1) copolymer. After creation of an optical anisotropy in these films, the kinematics and spectral characteristics of the electro-optical effect are studied. A huge change (greater than 80 %) is detected in the intensity of the light passing...
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