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Photo-responsive high-molecular compound, photo-responsive high-molecular composition, dicarboxylic acid monomer, polyester, optical recording medium and optical record reproducing device
Photo-responsive high-molecular compound, photo-responsive high-molecular composition, dicarboxylic acid monomer, polyester, optical recording medium and optical record reproducing device
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机译:光响应性高分子化合物,光响应性高分子组合物,二羧酸单体,聚酯,光学记录介质和光学记录再现装置
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摘要
In the present invention, a photosensitive layer of an optical recording medium includes a photo-responsive high-molecular compound comprising a photo-responsive group (e.g., an azobenzene derivative) which is geometrically isomerized by light radiation, and a liquid crystal linear mesogen group (e.g., a biphenyl derivative), wherein the photo-responsive group and the linear mesogen group are respectively bonded as side chains. The invention provides an optical recording medium enabling large scale recording by making the photosensitive layer thick without impairing recording characteristics. The photo-responsive high-molecular compound preferably comprises an aromatic ring on a main chain. Further, the photo-responsive high-molecular compound preferably comprises a structural unit which is capable of forming a liquid-crystalline or crystalline polymer and a structural unit which is capable of forming an amorphous polymer.
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