Improving durability of environmental materials (cloths and life materials) and physical protection using UV cutting materials

制备了多种含有单线态氧猝灭片段的潜在紫外线吸收剂，作为防晒织物紫外线吸收剂的应用和改进手段。考察了它们在聚合物基体中的紫外可见吸收光谱和对染料褪色的抑制作用。研究发现，这些化合物能有效地吸收有害的紫外线，并能有效地减少褪色。进一步合成了多种含苯并三唑基团的二苯甲酮类紫外吸收剂，试图提高紫外吸收剂的紫外线防护系数（UPF），提高染料的耐光性。发现新化合物具有很高的UPF，对提高染料的耐光性有重要作用。

Numerous potential UV absorbers containing a singlet oxygen quenching moiety were prepared as a means of application and improvement of UV absorbers for sun protective fabrics. Their ultraviolet-visible absorption spectra and inhibiting effect on the fading of dyes was examined in polymer substrate. It has been found that these compounds effectively absorb the harmful UV light and were very effective in reducing the fading.Various kinds of benzophenone UV absorbers bearing benzotriazolyl groups were further synthesized in an attempt to increase the Ultraviolet Protection Factors (UPF) of UV absorbers, and improve the light fastness of dyes. It was found that new compounds show very high UPF, and play an important role in improving the light fastness of dyes.