《Metal-free ATRP catalyzed by visible light in continuous flow》 was written by El Achi, Nassim; Bakkour, Youssef; Adhami, Wissal; Molina, Julien; Penhoat, Mael; Azaroual, Nathalie; Chausset-Boissarie, Laetitia; Rolando, Christian. Recommanded Product: 7789-45-9 And the article was included in Frontiers in Chemistry (Lausanne, Switzerland) in 2020. The article conveys some information:
ATRP of Me 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 Mn measured by GPC and DOSY NMR in accordance with the theor. values and show low dispersities (ETH < 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 The experimental part of the paper was very detailed, including the reaction process of Cupric bromide(cas: 7789-45-9Recommanded Product: 7789-45-9)
Cupric bromide(cas: 7789-45-9) can be used as reducing agent, when complexed by three molecules of pyridine initiators for the controlled polymerization of styrene, methyl acrylate and methyl methacrylate.Recommanded Product: 7789-45-9
Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”