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Coating of structured catalytic reactors by plasma assisted polymerization of tetramethyldisiloxane
Author(s) -
Essakhi Adil,
Mutel Brigitte,
Supiot Philippe,
Löfberg Axel,
Paul Sébastien,
Courtois Véronique Le,
Meille Valérie,
Pitault Isabelle,
BordesRichard Elisabeth
Publication year - 2011
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.21899
Subject(s) - materials science , coating , raman spectroscopy , x ray photoelectron spectroscopy , polymerization , fourier transform infrared spectroscopy , layer (electronics) , chemical engineering , catalysis , plasma polymerization , deposition (geology) , composite material , organic chemistry , polymer , optics , chemistry , physics , engineering , paleontology , sediment , biology
An original process based on cold plasma assisted polymerization of tetramethyldisiloxane (TMDSO) in the presence of O 2 was developed to cover substrates showing various shapes (plate and foam). In the frame of catalytic application, this coating has to act as a bonding layer for the deposition of active phase such as VO x /TiO 2 well‐known for its properties in NO x and volatile organic compounds abatement and in the production of chemical intermediates. Good results were obtained by the deposition of a 5‐μm thick polysiloxane film followed by a thermal treatment under air at 650°C and by a remote nitrogen plasma post treatment. This procedure led to a silica‐like layer allowing its coating in an aqueous suspension of TiO 2 . Such a multilayered material can be obtained homogeneously on the whole surface of a sample showing a 3D open geometry like metallic foam. Characterizations of the different steps of the elaborated multilayer material were performed by Fourier transformed infrared spectroscopy, Raman spectrometry, X‐ray photoelectron spectroscopy, and electron probe micro‐analyzer. POLYM. ENG. SCI., 2011. © 2011 Society of Plastics Engineers