| 초록 |
Photochromic is a phenomenon that changing of color by absorbing light due to the transformation of chemical structure. Spiropyran is well known a dye material that exploit photochromic phenomenon reacted with UV-light. In this study, to apply photochromic phenomenon for color tunable contact lens, we synthesized a functionalized spiropyran dye. The result of functionalization was analyzed by FT-IR, and the photochromic phenomenon was observed by exposing specific wavelength light, UV-light. Furthermore, equilibrium water content, light transmittance, and oxygen permeability were measured to evaluate the properties of the functionalized spiropyran contained contact lens. We expect that it can be used for functional lens such as UV-blocking lens, and color lens. |
