Journal
APPLIED SURFACE SCIENCE
Volume 369, Issue -, Pages 482-491Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2016.01.146
Keywords
Layer-by-layer assembly; Poly(dimethylsiloxane) (PDMS); Polymer plasma processing; Polyelectrolyte; Surface modification
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Funding
- Institut Carnot Energie et Environnement en Lorraine (ICEEL)
- French National Research Agency (ANR) [ANR-14-CE06-0022]
- Agence Nationale de la Recherche (ANR) [ANR-14-CE06-0022] Funding Source: Agence Nationale de la Recherche (ANR)
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Completely homogenous films formed via the layer-by-layer assembly of poly(diallyldimethylammonium chloride) (PDADMAC) and the poly(styrene sulfonate) were successfully obtained on plasma-treated poly(dimethylsiloxane) (PDMS) substrates. To modify the hydrophobicity of the PDMS surface, a cold plasma treatment was previously applied to the membrane, which led to the creation of hydrophilic groups on the surface of the membrane. PDMS wettability and surface morphology were successfully correlated with the plasma parameters. A combination of contact angle measurements, scanning electron microscopy (SEM) and atomic force microscopy (AFM) analysis was used to demonstrate that homogeneous and hydrophilic surfaces could be achieved on PDMS cold-plasma-treated membranes. The stability of the assembled PEL layer on the PDMS was evaluated using a combination of pull-off testing and X-ray photoelectron spectroscopy (XPS), which confirmed the relevance of a plasma pre-treatment as the adhesion of the polyelectrolyte multilayers was greatly enhanced when the deposition was completed on an activated PDMS surface at 80 W for 5 min. (C) 2016 Elsevier B.V. All rights reserved.
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