Peterson, Vanessa KCorr, CormacKearley, GordonBoswell, RoderickIzaola, Zunbeltz2015-12-070255-5476http://hdl.handle.net/1885/26262This paper compares proton diffusion through plasma-polymerised proton-exchange membranes (PEMs) produced using traditional wet-chemical methods (NafionR) and those produced using plasma-polymerisation. Using quasielastic neutron scattering and a simple model of proton motion we find the measured diffusion-rate of protons in the plasma-polymerised material and NafionR is the same (within 1 standard error) even though the plasma-polymerised membrane has 80 % less water than the NafionR. We attribute this result to the highly cross-linked structure of the plasma-polymerised membrane.Keywords: Crosslinked structures; High water; Plasma polymerisation; Polymer membrane; Polymer membranes; Polymerisation; Proton diffusion; Proton exchange membranes; Proton motion; Proton-exchange membrane; Quasi elastic neutron scattering; Simple model; Standard Diffusion; Fuel cell membranes; Neutron scattering; Plasma polymerisation; Polymer membranes201010.4028/www.scientific.net/MSF.654-656.28712016-02-24