Styrene polymer having dithienyl cyclopentene-based compounds, the dithienyl cyclopentene, optical functional element and photochromic material

摘要

Photochromic material that reacts to the irreversible easy display material, by ultraviolet light both the return to non-colored state from the colored state, and is relatively stable thermally two isomers caused by light irradiation, the color red The heated photochromic novel materials to react irreversibly with ultraviolet light, and shows photochromism, photochromic materials novel decoloring irreversibly shows photochromism in the solid state, and a uniform polymeric photochromic component, to a high density is to provide an optical functional device polymers, and photochromic materials that can be incorporated. Alternatively dithienyl cyclopentene compounds represented by the following general formula (I), is a styrene polymer having a dithienyl cyclopentene represented by the following general formula (II).