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Title: | Thiourea Dioxide As a Green and Affordable Reducing Agent for the ARGET ATRP of Acrylates, Methacrylates, Styrene, Acrylonitrile, and Vinyl Chloride | Authors: | Mendonça, Patrícia V. Ribeiro, Jessica P.M. Abreu, Carlos M. R. Guliashvili, Tamaz Serra, Arménio Coelho, Jorge |
Issue Date: | 7-Mar-2019 | Publisher: | American Chemical Society | Project: | FCT-MCTES postdoctorate scholarship (SFRH/BPD/117589/2016) FCT (Fundação para a Ciência e Tecnologia) for the project Safesurf (PTDC/CTMPOL/ 6138/2014) Agência Nacional de Inovação for the financial support of the Project Flexivinil (QREN 3320) Project VinylGreen (QREN 17789) FEDER − European Regional Development Fund through the COMPETE Programme (Operational Programme for Competitiveness) and by National Funds through FCT − Fundação para a Ciência e a Tecnologia (Portuguese Foundation for Science and Technology) through Grants REEQ/481/QUI/ 2006, RECI/QEQ-QFI/0168/2012, CENTRO-07-CT62- FEDER-002012, and Rede Nacional de Ressonância Magnética Nuclear (RNRMN) |
Serial title, monograph or event: | ACS Macro Lett . | Volume: | 8 | Issue: | 3 | Abstract: | Thiourea dioxide, a green and inexpensive compound used at industrial scale, was employed as reducing agent for the controlled polymerization of a wide range of monomer families, namely, acrylates (methyl acrylate, 2-hydroxyethyl acrylate, butyl acrylate, methacrylates (2-(dimethylamino)ethyl methacrylate, 2-aminoethyl methacrylate hydrochloride, and methyl methacrylate), styrene, acrylonitrile, and vinyl chloride (nonactivated monomer) by ATRP. Mechanistic studies confirmed that the polymerizations are ruled by the activators regenerated by electron transfer (ARGET) mechanism. It is worth noting that vinyl chloride has never been polymerized by ARGET ATRP. The system proved to be very versatile and robust, working in organic solvents, organic/water mixtures, and aqueous medium at near room temperature with low metal catalyst concentration. Chain extension experiments confirmed the high chain-end functionality of the polymers, allowing the preparation of several well-defined block copolymers. | URI: | https://hdl.handle.net/10316/115678 | DOI: | 10.1021/acsmacrolett.9b00139 | Rights: | openAccess |
Appears in Collections: | I&D CEMMPRE - Artigos em Revistas Internacionais |
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