Journal
POLYMER CHEMISTRY
Volume 13, Issue 7, Pages 929-936Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1py01356d
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Funding
- FCT - Foundation for Science and Technology [SFRH/BD/121534/2016]
- R&D unit CEMMPRE-285 [UID/EMS/00285/2019, UIDB/00285/2020]
- FEDER - European Regional Development Fund through the COMPETE Programme (Operational Programme for Competitiveness)
- FCT (Portuguese Foundation for Science and Technology) [REEQ/481/QUI/2006, RECI/QEQ-QFI/0168/2012, CENTRO-07-CT92-FEDER-002012]
- Rede Nacional de Ressonancia Magnetica Nuclear (RNRMN)
- Fundação para a Ciência e a Tecnologia [SFRH/BD/121534/2016] Funding Source: FCT
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This study presents a simple photo-controlled iodine transfer polymerization system using methacrylate monomers, solvent, and initiator under violet and sunlight irradiation with good control over the polymerization process. The system does not require additional photocatalysts or iodide salts and provides tight control over activation and deactivation. The polymerization system under sunlight extends to several methacrylate monomers in a well-controlled manner.
A very simple photo-controlled iodine transfer polymerization system consisting only of methacrylate monomers, solvent (dimethylacetamide), and initiator (tosyl iodide) under violet and sunlight irradiation is reported. In this report, the tosyl iodide initiator is used for the first time for the successful photo-controlled polymerization of methyl methacrylate (MMA), which yields a well-controlled PMMA under irradiation with violet light (D = 1.28) and sunlight (D = 1.23). This system does not require additional photocatalysts or iodide salts to control polymerization. In addition, the presented polymerization system provides tight control over activation and deactivation in response to on-off switching cycles. The polymerization system under sunlight has been successfully extended to polymerize several methacrylate monomers such as glycidyl methacrylate (GMA), ethyl methacrylate (EMA), n-butyl methacrylate (n-BMA), and 2-hydroxyethyl methacrylate (HEMA) in a very well controlled manner (1.04 <= D <= 1.31).
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