| 摘要 |
PURPOSE:To obtain a thin film and to enable multiple wavelength recording with a high hole retaining property by incorporating and dispersing a photochemically reactive substance such as a photoisomerization substance only in the micro phase in a matrix system having micro phase separative power. CONSTITUTION:In the matrix system having micro phase separative power, namely the capacity of forming a micro domain, the photochemically reactive substance which is highly compatible with the first high molecule material is used to incorporate the photochemically reactive substance only into the micro domain. For example, a hydrophilic substituent such as an amino group and an ester group is used in the polymer having a polypeptide or a hydrogen bonding side chain and ether-, ester-, amide-linkage, etc., are used as a covalent bond to be deposited on the first high molecular material. One molecule of the photochemically reactive substance per one molecule of the first high molecular material is deposited, hence the inter-molecular movement of energy can be controlled, the medium layer can be uniformized and thinned and multiple wavelength recording with a high hole retaining property can be carried out. |
