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Tsougeni, K., Vourdas, N., Tserepi, A., Gogolides, E. & Cardinaud, C. (2009) Mechanisms of Oxygen Plasma Nanotexturing of Organic Polymer Surfaces: From Stable Super Hydrophilic to Super Hydrophobic Surfaces. Langmuir, 25 11748–11759. 
Added by: Laurent Cournède (2016-03-10 21:41:23)
Type de référence: Article
DOI: 10.1021/la901072z
Numéro d'identification (ISBN etc.): 0743-7463
Clé BibTeX: Tsougeni2009
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Catégories: PCM
Mots-clés: deposition, low-temperature plasma, poly(dimethylsiloxane), poly(methyl methacrylate), polypropylene, polystyrene, protein adsorption, Water, wettability, wetting properties
Créateurs: Cardinaud, Gogolides, Tserepi, Tsougeni, Vourdas
Collection: Langmuir
Consultations : 8/692
Indice de consultation : 3%
Indice de popularité : 0.75%
Plasma processing is used to fabricate super hydrophilic or super hydrophobic polymeric surfaces by means of O(2) plasma etching of two organic polymers, namely, poly(methyl methacrylate) (PMMA) and poly(ether ether ketone) (PEEK); a C(4)F(8) plasma deposition follows O(2) plasma etching, if surface hydrophobization is desired. We demonstrate high aspect ratio pillars with height ranging from 16 nm to several micrometers depending oil the processing time, and contact angle (CA) close to 0 degrees after O(2)-Plasma treatment or CA of 153 degrees (with CA hysteresis lower than 5 degrees) after fluorocarbon deposition. Super hydrophobic surfaces are robust and stable in time; in addition, aging of super hydrophilic surfaces is significantly retarded because of the beneficial effect of the nanotextured topography. The mechanisms responsible for the plasma-induced PMMA and PEEK surface nanotexturing are unveiled through intelligent experiments involving intentional modification of the reactor wall material and X-ray photoelectron spectroscopy, which is also used to study the surface chemical modification in the plasma. We prove that control of plasma nanotexture call be achieved by carefully choosing the reactor wall material.
Added by: Laurent Cournède  
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