用于可见光诱导光聚合的有机染料基光引发系统,Journal of Polymer Science

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用于可见光诱导光聚合的有机染料基光引发系统
Journal of Polymer Science ( IF 3.9 ) Pub Date : 2021-06-05 , DOI: 10.1002/pol.20210225
Ke Sun _{1,

2} , Pu Xiao ₃ , Frédéric Dumur ₄ , Jacques Lalevée _{1,

2}

Affiliation

尽管文献中已经报道了许多有机染料作为自由基聚合的光引发剂/光敏剂，但基于适用于可见光照射的有机染料（例如 405 nm LED 和太阳光）的新型光引发体系的设计和开发仍然具有挑战性。最近，基于有机染料作为捕光化合物的高性能光引发体系的开发及其作为可见光照射下光聚合的光引发剂的应用取得了重大成就，并产生了大量文献。在这篇综述中，对最近合成的属于各种有机染料家族并在 2018-2021 年期间用作聚合光引发剂的发色团进行了概述和分类。最近的工作导致开发出新的发色团，在自由基光聚合过程中，在用 LED 和/或阳光照射时，表现出显着的可见光吸收特性和优异的光引发能力。这些发展显着表明，太阳光具有廉价、无限、发射光谱宽、节能光源等优点，可以有效替代人工光源。新开发的染料基光引发系统旨在引发可见光诱导的光聚合过程，可能会扩大光聚合在现代科学和技术中的应用范围。

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Organic dye-based photoinitiating systems for visible-light-induced photopolymerization

Even though many organic dyes have been reported as photoinitiators/photosensitizers for free radical polymerization in the literature, the design and development of novel photoinitiating systems based on organic dyes adaptable for visible light irradiation, for example, 405 nm LED and sunlight still remains challenging. Recently, major achievements in the development of high-performance photoinitiating systems based on organic dyes as light-harvesting compounds and their uses as photoinitiators for photopolymerization under visible-light irradiation have clearly emerged, giving rise to abundant literature. In this review, an overview of the recently synthesized chromophores belonging to various families of organic dyes and used as photoinitiators of polymerization during the 2018–2021 period are presented and classified. Recent works have resulted in the development of new chromophores exhibiting remarkable visible light absorption properties and excellent photoinitiation abilities upon irradiation with LEDs and/or sunlight in free radical photopolymerization processes. These developments notably indicate that sunlight has the advantages of being a cheap, unlimited, broad emission spectrum, and energy-saving light source capable to be an efficient substitute to artificial light sources. The newly developed dye-based photoinitiating systems designed to initiate visible-light-induced photopolymerization processes are likely to expand the scope of application of photopolymerization in modern sciences and technologies.

更新日期：2021-07-02

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