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Visible-Light-Driven Free Radical Polymerization and 3D Printing with Highly Efficient Carbazole-Substituted Aza-BODIPY Photoinitiators

Chenzhi YaoAnhui Provincial Key Laboratory of Biomedical Materials and Chemical Measurement, Laboratory of Functionalized Molecular Solids, Ministry of Education, College of Chemistry and Materials ScienceQike SunAnhui Normal UniversityHui DengAnhui Provincial Key Laboratory of Biomedical Materials and Chemical Measurement, Laboratory of Functionalized Molecular Solids, Ministry of Education, College of Chemistry and Materials ScienceGongyang ChenAnhui Provincial Key Laboratory of Biomedical Materials and Chemical Measurement, Laboratory of Functionalized Molecular Solids, Ministry of Education, College of Chemistry and Materials ScienceHeng XiaAnhui Normal UniversityZhengjiang LiuInner Mongolia University of TechnologyTimur BorjiginInner Mongolia University of TechnologyJiansong YinUniversité de Haute-Alsace, CNRS, IS2M UMR 7361, F-68100 Mulhouse, FranceJacques LalevéeUniversité de Haute-AlsaceYangyang XuAnhui Provincial Key Laboratory of Biomedical Materials and Chemical Measurement, Laboratory of Functionalized Molecular Solids, Ministry of Education, College of Chemistry and Materials Science

Macromoleculesjournal2026en

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ABI

Annotatsiya

Photoinduced radical chemistry is pivotal for synthesizing polymeric materials under light irradiation. In this study, carbazole moieties were incorporated at distinct positions within the aza-boron-dipyrromethene (aza-BODIPY) scaffold, yielding three novel push–pull dyes that function as high-performance photoinitiators for the free radical polymerization of acrylates upon exposure to visible-light LED irradiation. When combined with iodonium salts or amines as co-initiators, these aza-BODIPY derivatives form efficient two-component photoinitiating systems that exhibit outstanding initiation performance. Notably, distinct polymerization kinetics were observed for two benchmark acrylate monomers. Through a combination of experimental investigations and theoretical calculations, a comprehensive photochemical mechanism has been elucidated. Furthermore, these newly developed carbazole-substituted aza-BODIPY-based photoinitiating systems enable the fabrication of high-resolution three-dimensional macroscale architectures via 3D printing. This work advances the fundamental understanding and practical application of visible-light-induced free radical polymerization.

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Mavzular

Photopolymerization techniques and applications Advanced Polymer Synthesis and Characterization Polymer composites and self-healing

Identifikatorlar

DOI: 10.1021/acs.macromol.5c02921

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