Abstract
AbstractNatural flavone‐derivatives (i.e., morin and quercetin) are investigated as visible light‐sensitive photoinitiators. The photochemical mechanisms of the radical generation from flavone‐derivative‐based photoinitiating systems (PISs) upon exposure to mild blue light‐emitting diodes are studied. The impact of substituent site of functional groups on the photoinitiation ability is determined. The quercetin‐based PISs exhibit more reactivity than the morin‐based systems on free radical photopolymerization. Moreover, the investigated flavone‐based PISs present their stabilities at room temperature, indicating that resin containing these systems barely require special storage requirements. Thiol‐ene polymerization initiated by the flavone‐derivatives‐based PISs is also investigated.
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