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Issue 20, 2019
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Poly-quasi-eutectic solvents (PQESs): versatile solvents for dissolving metal oxides

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Abstract

The concept of poly-quasi-eutectic solvents (PQESs) has been proposed in this study. A class of PQESs composed of polymers, namely polyethylene glycol (PEG), poly(ethylene glycol)-block-poly(propylene glycol)-block poly(ethylene glycol) (P123), poly(propylene glycol) bis(2-aminopropyl ether) (PPG-NH2), and poly(ethylene glycol) dimethyl ether (DMPEG), and hydrogen bonding donors (HBDs, including carboxylic acids and amides) were prepared, which could be used for dissolving metal oxides. The PQESs were formed by simply mixing the selected polymers and HBDs. The PEG-based PQESs have excellent physiochemical properties, including negligible volatility, low viscosity, intrinsic conductivity, and wide electrochemical windows. Moreover, they were shown to be good solvents for metal oxides, which have potential applications in industrial metallurgical processes.

Graphical abstract: Poly-quasi-eutectic solvents (PQESs): versatile solvents for dissolving metal oxides

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Publication details

The article was received on 12 May 2019, accepted on 03 Sep 2019 and first published on 03 Sep 2019


Article type: Paper
DOI: 10.1039/C9GC02604E
Green Chem., 2019,21, 5571-5578

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    Poly-quasi-eutectic solvents (PQESs): versatile solvents for dissolving metal oxides

    J. Jiang, X. Bai, X. Zhao, W. Chen, T. Yu, Y. Li and T. Mu, Green Chem., 2019, 21, 5571
    DOI: 10.1039/C9GC02604E

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