Described is a photochromic polymer composition including the reaction product of at least one polymerizable photochromic material and at least one other copolymerizable material having a glass transition temperature of less than 23° C. upon polymerization. The photochromic polymer composition is adapted to provide an increased Fade Half Life in the Photochromic Polymer Performance Test as compared to the same photochromic compound used in the reaction product, but free of polymerizable groups. Also described are photochromic articles including the photochromic polymer composition.
所述光致变色聚合物组合物包括至少一种可聚合光致变色材料和至少一种其他可共聚材料的反应产物,聚合时的
玻璃化转变温度低于 23°C。与反应产物中使用的相同光致变色化合物(但不含可聚合基团)相比,该光致变色聚合物组合物在光致变色聚合物性能测试中可提供更长的褪色半衰期。此外,还描述了包括光致变色聚合物组合物的光致变色物品。