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Room Temperature Defluorination of Poly(tetrafluoroethylene) by a Magnesium Reagent

[Image: see text] Perfluoroalkyl substances (PFAS) are pervasive in the environment. The largest single use material within the PFAS compound class is poly(tetrafluoroethylene) (PTFE), a robust and chemically resistant polymer. Despite their widespread use and serious concerns about their role as po...

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Autores principales: Sheldon, Daniel J., Parr, Joseph M., Crimmin, Mark R.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2023
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10197119/
https://www.ncbi.nlm.nih.gov/pubmed/37154713
http://dx.doi.org/10.1021/jacs.3c02526
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author Sheldon, Daniel J.
Parr, Joseph M.
Crimmin, Mark R.
author_facet Sheldon, Daniel J.
Parr, Joseph M.
Crimmin, Mark R.
author_sort Sheldon, Daniel J.
collection PubMed
description [Image: see text] Perfluoroalkyl substances (PFAS) are pervasive in the environment. The largest single use material within the PFAS compound class is poly(tetrafluoroethylene) (PTFE), a robust and chemically resistant polymer. Despite their widespread use and serious concerns about their role as pollutants, methods for repurposing PFAS are rare. Here we show that a nucleophilic magnesium reagent reacts with PTFE at room temperature, generating a molecular magnesium fluoride which is easily separated from the surface-modified polymer. The fluoride in turn can be used to transfer the fluorine atoms to a small array of compounds. This proof-of-concept study demonstrates that the atomic fluorine content of PTFE can be harvested and reused in chemical synthesis.
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spelling pubmed-101971192023-05-20 Room Temperature Defluorination of Poly(tetrafluoroethylene) by a Magnesium Reagent Sheldon, Daniel J. Parr, Joseph M. Crimmin, Mark R. J Am Chem Soc [Image: see text] Perfluoroalkyl substances (PFAS) are pervasive in the environment. The largest single use material within the PFAS compound class is poly(tetrafluoroethylene) (PTFE), a robust and chemically resistant polymer. Despite their widespread use and serious concerns about their role as pollutants, methods for repurposing PFAS are rare. Here we show that a nucleophilic magnesium reagent reacts with PTFE at room temperature, generating a molecular magnesium fluoride which is easily separated from the surface-modified polymer. The fluoride in turn can be used to transfer the fluorine atoms to a small array of compounds. This proof-of-concept study demonstrates that the atomic fluorine content of PTFE can be harvested and reused in chemical synthesis. American Chemical Society 2023-05-08 /pmc/articles/PMC10197119/ /pubmed/37154713 http://dx.doi.org/10.1021/jacs.3c02526 Text en © 2023 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by/4.0/Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Sheldon, Daniel J.
Parr, Joseph M.
Crimmin, Mark R.
Room Temperature Defluorination of Poly(tetrafluoroethylene) by a Magnesium Reagent
title Room Temperature Defluorination of Poly(tetrafluoroethylene) by a Magnesium Reagent
title_full Room Temperature Defluorination of Poly(tetrafluoroethylene) by a Magnesium Reagent
title_fullStr Room Temperature Defluorination of Poly(tetrafluoroethylene) by a Magnesium Reagent
title_full_unstemmed Room Temperature Defluorination of Poly(tetrafluoroethylene) by a Magnesium Reagent
title_short Room Temperature Defluorination of Poly(tetrafluoroethylene) by a Magnesium Reagent
title_sort room temperature defluorination of poly(tetrafluoroethylene) by a magnesium reagent
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10197119/
https://www.ncbi.nlm.nih.gov/pubmed/37154713
http://dx.doi.org/10.1021/jacs.3c02526
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