Engineering Polymer Surfaces with Variable Chemistry and Topography
PAPON, Eric
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 1 LCPO : Polymerization Catalyses & Engineering
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Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 1 LCPO : Polymerization Catalyses & Engineering
PAPON, Eric
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 1 LCPO : Polymerization Catalyses & Engineering
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 1 LCPO : Polymerization Catalyses & Engineering
RODRIGUEZ-HERNANDEZ, Juan
CSIC, Inst Ciencia & Tecnol Polimeros
Laboratoire de Chimie des Polymères Organiques [LCPO]
< Leer menos
CSIC, Inst Ciencia & Tecnol Polimeros
Laboratoire de Chimie des Polymères Organiques [LCPO]
Idioma
en
Article de revue
Este ítem está publicado en
Journal of Polymer Science Part A: Polymer Chemistry. 2009, vol. 47, n° 9, p. 2262-2271
Wiley
Resumen en inglés
We describe the preparation of surfaces with controlled surface chemistry and topology combining both surface segregation of block copolymers and "breath figures" formation. For that purpose, an amphiphilic ABC triblock ...Leer más >
We describe the preparation of surfaces with controlled surface chemistry and topology combining both surface segregation of block copolymers and "breath figures" formation. For that purpose, an amphiphilic ABC triblock copolymer, that is, poly(2,3,4,5,6-pentafluorostyrene)-b-polystyrene-b-poly[poly(ethylene glycol) methyl ether methacrylate] (PS5F(21)-b-PS31-b-PPEGMA(38)) was mixed with high molecular weight polystyrene and spin coated in a moist atmosphere. As demonstrated by Xray photoelectron spectroscopy and atomic force microscopy analysis, the surfaces exhibit spherical holes with diameters between 100 and 300 nm. The holes, enriched in triblock copolymer, exhibit variable chemical composition and topography depending on the environmental conditions. The surface functionality could be reversibly modulated: whereas under humid conditions the PPEGMA hydrophilic block reorients towards the surface, annealing to dry air directs the PS5F fluorinated block to the interface. Equally, surfaces annealed to humid air changed their topography from holes to islands depending on the extent of swelling of the PPEGMA block.< Leer menos
Palabras clave en inglés
swelling
annealing
blends
block copolymers
surfaces
Orígen
Importado de HalCentros de investigación