Polímeros: Ciência e Tecnologia
https://www.revistapolimeros.org.br/article/doi/10.1590/0104-1428.10119
Polímeros: Ciência e Tecnologia
Original Article

Synthesis of novel organocatalyzed phenoxazine for free metal atom transfer radical polymerization

Thu Hoang Vo; Huong Thi Le; Tien Anh Nguyen; Nhu Quang Ho; Thang Van Le; Dat Hung Tran; Thuy Thu Truong; Ha Tran Nguyen

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Abstract

In this research, a novel organic photocatalyst of 10-(Perylene-3-yl-10H-Phenoxazine (PHP) has been synthesized successfully from perylene and phenoxazine via Buchwald-Hartwig C-N coupling. The chemical structure of catalyst was determined via proton nuclear magnetic resonance (1H-NMR) spectrum and optical properties were investigated through UV-Vis spectroscopy. The PHP has been used as the reducing photoredox catalyst for organocatalyzed atom transfer radical polymerization (ATRP) under UV irradiation. The well controlled molecular weight of polymers based on methyl methacrylate monomers have been obtained with monomer conversion up to 77.61% and low polydispersity index under 1.5.

 

Keywords

methacrylate monomer, phenoxazine, organic photocatalyst, atom transfer radical polymerization

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