Monomers and homopolymers, having high photoinduceable double refraction, prepared therefrom
申请人:——
公开号:US20030083449A1
公开(公告)日:2003-05-01
Homopolymers suitable for storage of information provided optically are disclosed. The are formed from monomers which
contain groupings which are at least trinuclear, which are capable of absorbing the electromagnetic radiation of visible light, and which are structured so that in their thermodynamically stable state they are distended and strongly anisometric,
wherein the at least trinuclear groupings comprise at least one electron-attracting substituent which gives rise to a dipole moment which forms an angle of at least 20° with the longitudinal axis of the at least trinuclear groupings,
wherein the at least trinuclear groupings contain at least one nucleus-linking group which is suitable for a photo-induced change in configuration, wherein said group is selected from the set consisting of
1
本发明揭示了适用于光学信息存储的同聚物。它们由含有至少三核基团的单体形成,这些基团能够吸收可见光的电磁辐射,并且结构化使得它们在热力学稳定状态下被扩展和强烈的异向性。其中至少三核基团包含至少一个电子吸引取代基,其产生一个偶极矩,该偶极矩与至少三核基团的纵向轴形成至少20°的角度。至少三核基团包含至少一个核连接基团,适用于光诱导构型变化,该基团从以下集合中选择:1