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Harnessing Solar Energy for Polymer Synthesis: Recent Advances in Photoinitiators and Photocatalysts for Natural Light-Induced Photopolymerization
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DOI：10.1016/j.progpolymsci.2026.102089.png)
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Abstract
En 中文
In the pursuit of green polymer chemistry, natural sunlight represents the ideal energy source for photopolymerization due to its abundance and sustainability. While the transition from UV to LED light has improved energy efficiency, sunlight-driven photopolymerization offers a transformative path towards power-free and accessible material synthesis. The key challenge is the development of highly sensitive photoinitiating systems (PISs) capable of harnessing the broad solar spectrum. This review provides a comprehensive overview of the state-of-the-art in sunlight-induced photopolymerization. We explore the core photochemical mechanisms and survey the latest developed photoinitiators (PIs) and photocatalysts of versatile organic dyes. We highlight recent milestones where solar-driven systems have achieved polymerization rates comparable to their LED-activated counterparts, showcasing their practical viability. Furthermore, real-world applications in coatings, 3D printing, and biomaterials are discussed through specific case studies. By addressing current challenges and outlining future research directions, this review aims to promote further innovation in the rational design of solar-activated PISs, ultimately unlocking the full potential of sunlight as a cornerstone for sustainable manufacturing.
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