Towards Extrusion of Ionomers to Process Fuel Cell Membranes
AbstractWhile Proton Exchange Membrane Fuel Cell (PEMFC) membranes are currently prepared by film casting, this paper demonstrates the feasibility of extrusion, a solvent-free alternative process. Thanks to water-soluble process-aid plasticizers, duly selected, it was possible to extrude acidic and alkaline polysulfone ionomers. Additionally, the feasibility to extrude composites was demonstrated. The impact of the plasticizers on the melt viscosity was investigated. Following the extrusion, the plasticizers were fully removed in water. The extrusion was found to impact neither on the ionomer chains, nor on the performances of the membrane. This environmentally friendly process was successfully validated for a variety of high performance ionomers.
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Molmeret, Y.; Chabert, F.; Kissi, N.E.; Iojoiu, C.; Mercier, R.; Sanchez, J.-Y. Towards Extrusion of Ionomers to Process Fuel Cell Membranes. Polymers 2011, 3, 1126-1150.
Molmeret Y, Chabert F, Kissi NE, Iojoiu C, Mercier R, Sanchez J-Y. Towards Extrusion of Ionomers to Process Fuel Cell Membranes. Polymers. 2011; 3(3):1126-1150.Chicago/Turabian Style
Molmeret, Yannick; Chabert, France; Kissi, Nadia El; Iojoiu, Cristina; Mercier, Regis; Sanchez, Jean-Yves. 2011. "Towards Extrusion of Ionomers to Process Fuel Cell Membranes." Polymers 3, no. 3: 1126-1150.