The high polymer has good photochromic performance, and can be used for preparing a photochromic film and coating.
本发明高聚物具有良好的光致变色性能，可用于制备光致变色薄膜和涂层。
These compounds showed good photochromic reactions both in solution and in PMMA amorphous film by photo-irradiation.
在光辐照下，这些化合物在溶液和PM MA膜中均具有良好的光致变色特性。
The negative film which covered the photochromic material was subjected to UV light, and image with clear contrast which lasted over 24 hours was obtained.
将底片覆盖在此膜上，经紫外线照射后呈现出明显的色差，显示出的图象可保留24小时以上。
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