Revealing the photoredox potential of azulene derivatives as panchromatic photoinitiators in various light-initiated polymerization processes

Herein, the application of previously unknown azulene derivatives as effective panchromatic photosensitizers in the visible light range in the initiation of light-induced cationic and free-radical polymerization processes was investigated. The presented azulene derivatives showed a high photoreodox potential allowing the use of these compounds in two-component and three-component photoinitiating systems for various photopolymerization processes. In addition, within the scope of this manuscript, the effectiveness of using photoinitiating systems containing the proposed azulene derivatives in 3D printing to obtain three-dimensional polymer structures has been confirmed and for the first time proven in the literature.本文研究了此前未见报道的薁（azulene）类衍生物作为可见光波段高效全色光敏剂，在光诱导阳离子聚合与自由基聚合过程引发中的应用。所报道的薁类衍生物具有优异的光氧化还原电位，可将此类化合物应用于适配多种光聚合过程的双组分及三组分光引发体系。此外，本文证实了含所提出薁类衍生物的光引发体系用于3D打印制备三维聚合物结构的有效性，且该成果在学术文献中尚属首次得到验证。