AI Article Synopsis
- ATRP of methyl methacrylate using Eosin Y as a green photocatalyst was successfully conducted in a continuous flow reactor, significantly speeding up the process to achieve 90% conversion in just 3 hours.
- The polymers produced exhibited results in line with theoretical expectations and demonstrated low dispersity, ensuring high quality.
- This research highlights the effectiveness of Eosin Y for controlled polymerization and showcases the utility of NMR techniques for analyzing polymer properties, paving the way for similar applications in reversible-deactivation radical polymerizations.
Article Abstract
ATRP of methyl methacrylate catalyzed by Eosin Y, an inexpensive and an environmental benign dye, was performed in a continuous flow reactor made of FEP tubing and irradiated by visible light green LEDs. The reaction under flow conditions was significantly more rapid and controlled compared to that in batch giving 90% of polymerization after only 3 h of irradiation. The formed polymers in flow have measured by GPC and DOSY NMR in accordance with the theoretical values and show low dispersities (Ð < 1.5). The livingness of the polymers has been confirmed by LED on and LED off experiments and by the synthesis of block copolymers. The protocol described herein serves as a "proof of concept" of using Eosin Y as a photocatalyst for controlled polymerization and of using 1D and 2D NMR for polymer characterization. The protocol could be replicated in the future for other reversible-deactivation radical polymerizations.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7505802 | PMC |
| http://dx.doi.org/10.3389/fchem.2020.00740 | DOI Listing |
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