Photopolymerization with AIE dyes for solid-state luminophores

Two anthracene-based dyes (MPA-H and MPA-E) with aggregation-induced emission (AIE) and photosensitization characteristics were prepared to obtain solid-state luminophores by photoinitiating the photopolymerization of acrylic monomers with iodonium salt under visible light-emitting diodes (LEDs). The photoinitiating activities of MPA-H/iodonium salt and MPA-E/iodonium salt were evaluated in the photopolymerization of acrylic monomers under 405, 460, and 520 nm LED sources. The aggregation-induced enhanced emission of MPA-H and MPA-E occurred during photocuring. MPA-H and MPA-E showed potential as fluorescent molecular probes to monitor the progress of free radical photopolymerization.