Abstract

A comparative analysis of the photochromic properties of composites based on polyvinyl alcohol and WO₃ nanoparticles stabilized with polyvinylpyrrolidone with different molecular weights has been performed. The composites possess reversible photochromicity. The results of electron absorption spectroscopy, thermal analysis, and mechanical tests showed that under the action of UV light, crosslinking of the polymer can occur depending on the molecular weight of the stabilizer and the polymer matrix.

中文翻译：

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聚乙烯醇和WO3复合材料的制备及其光致变色特性

摘要

对基于聚乙烯醇和不同分子量的聚乙烯吡咯烷酮稳定的WO _{3纳米粒子的复合材料的光致变色性能进行了比较分析。}该复合材料具有可逆光致变色性。电子吸收光谱、热分析和力学测试结果表明，在紫外光作用下，聚合物可以发生交联，具体取决于稳定剂和聚合物基体的分子量。