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X‐Ray Reflectometry Characterization of Plasma Polymer Films Synthesized from Triallylamine: Density and Swelling in Water
Author(s) -
Schieda Mauricio,
Salah Fethi,
Roualdès Stéphanie,
van der Lee Arie,
Beche Eric,
Durand Jean
Publication year - 2013
Publication title -
plasma processes and polymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 74
eISSN - 1612-8869
pISSN - 1612-8850
DOI - 10.1002/ppap.201200126
Subject(s) - swelling , reflectometry , materials science , polymer , plasma , membrane , bilayer , chemical engineering , conductivity , analytical chemistry (journal) , polymer chemistry , composite material , chemistry , chromatography , time domain , biochemistry , physics , quantum mechanics , computer science , engineering , computer vision
Commercial membranes suitable for solid alkaline membrane fuel cell (SAMFC) have not proved their competitiveness yet, due to poor ionic conductivity and water and fuel retention. Plasma polymers are however promising candidates to meet the SAMFC requirements. In this work, X‐ray reflectometry has been used to determine the thickness, density and water swelling of plasma polymerized films prepared from triallylamine, leading to a bilayer model for the studied thin films. Both film density and water swelling show a bimodal evolution as a function of the average plasma discharge power, which is directly related to the precursor fragmentation mechanism in the plasma phase and can be correlated with the film chemical composition.