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首页> 外文会议>Proceedings of the First International Conference on Application and Commercialization of Sol-Gel Processing, Saarbruecken, Germany >On the thermal and photochemical stabilities of photochromic spirooxazine dyes encapsulated in ormocer matrices derived by sol-gel proceesing
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On the thermal and photochemical stabilities of photochromic spirooxazine dyes encapsulated in ormocer matrices derived by sol-gel proceesing

机译：溶胶-凝胶法制备的光致变色螺恶嗪染料封装在ormorcer基质中的热稳定性和光化学稳定性

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摘要

Spiroindolinonaphthoxazine (abbreviated as SO), a most promising class of photochromic dyes due to their better photochromic response to UV irradiation (e.g.sunlight), higher fading rate of the coloured form and higher photofatigue resistance, is incorporated into Ormocer matrices synthesized by the sol-gel route aiming to achieve some application prospects. As for all technical applications the stability of the materials as a function of time and/or under certain harsh circumstances must be consdered and improved if necessary. In the present work the thermal and photochemical stabilities of our photochromic SO-Ormocer gels and coatings are investigated by room temperature (RT) holding, heat treatment and UV irradiation experiments and compared with the SO-PMMA coatings. It is shown by our results that both the thermal and photochemical stabilities of our SO-Ormocer coatings are similar to those of the SO-PMMA coatings. Considering that both the photochromic response and the fading rate of our SO-Ormocer coatings are much better than those of the SO-PMMA coatings, it is reasonable to conclude that the overall performance of SO-Ormocer coatings is acceptable for certain application purposes.
机译：Spiroindolinonaphthoxazine（缩写为SO）是一种最有前途的光致变色染料，因为它们对紫外线辐射（例如，阳光）具有更好的光致变色响应，更高的有色褪色率和更高的抗光疲劳性，因此被纳入由溶胶-溶胶合成的Ormocer基质中凝胶路线旨在达到一些应用前景。对于所有技术应用，必须考虑和改善材料随时间和/或在某些恶劣环境下的稳定性。在目前的工作中，我们通过室温（RT）保持，热处理和紫外线照射实验研究了我们的光致变色SO-Ormocer凝胶和涂层的热稳定性和光化学稳定性，并与SO-PMMA涂层进行了比较。我们的结果表明，我们的SO-Ormocer涂层的热稳定性和光化学稳定性与SO-PMMA涂层的相似。考虑到我们的SO-Ormocer涂层的光致变色响应和褪色率都比SO-PMMA涂层要好得多，因此可以合理地得出结论，SO-Ormocer涂层的整体性能对于某些应用是可以接受的。

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