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Membranes 2018, 8(4), 102; https://doi.org/10.3390/membranes8040102

Preparation of Polymer Electrolyte Membranes via Radiation-Induced Graft Copolymerization on Poly(ethylene-alt-tetrafluoroethylene) (ETFE) Using the Crosslinker N,N′-Methylenebis(acrylamide)

1
Institute of Technical Chemistry, Clausthal University of Technology, Arnold-Sommerfeld-Straße 4, 38678 Clausthal-Zellerfeld, Germany
2
Leibniz Institute of Polymer Research, Hohe Straße 6, 01069 Dresden, Germany
3
Institute of Chemical and Electrochemical Process Engineering, Clausthal University of Technology, Leibnizstraße 17, 38678 Clausthal-Zellerfeld, Germany
4
Energie-Forschungszentrum Niedersachsen, Am Stollen 19A, 38640 Goslar, Germany
*
Author to whom correspondence should be addressed.
Received: 19 September 2018 / Revised: 20 October 2018 / Accepted: 2 November 2018 / Published: 6 November 2018
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Abstract

Polymer electrolyte membranes (PEM) prepared by radiation-induced graft copolymerization are investigated. For this purpose, commercial poly(ethylene-alt-tetrafluoroethylene) (ETFE) films were activated by electron beam treatment and subsequently grafted with the monomers glycidyl methacrylate (GMA), hydroxyethyl methacrylate (HEMA) and N,N′-methylenebis(acrylamide) (MBAA) as crosslinker. The target is to achieve a high degree of grafting (DG) and high proton conductivity. To evaluate the electrochemical performance, the PEMs were tested in a fuel cell and in a vanadium redox-flow battery (VRFB). High power densities of 134 mW∙cm−2 and 474 mW∙cm−2 were observed, respectively. View Full-Text
Keywords: polymer electrolyte membranes; ETFE; graft copolymerization; crosslinker; fuel cell; vanadium redox-flow battery polymer electrolyte membranes; ETFE; graft copolymerization; crosslinker; fuel cell; vanadium redox-flow battery
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Ke, X.; Drache, M.; Gohs, U.; Kunz, U.; Beuermann, S. Preparation of Polymer Electrolyte Membranes via Radiation-Induced Graft Copolymerization on Poly(ethylene-alt-tetrafluoroethylene) (ETFE) Using the Crosslinker N,N′-Methylenebis(acrylamide). Membranes 2018, 8, 102.

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