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Article Dans Une Revue Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms Année : 2007

Nanoporous beta-PVDF membranes with selectively functionalized pores

Résumé

Poly (vinylidene fluoride) ( -PVDF) nanoporous membranes are obtained by heavy ion irradiation and track etching leading to cylindrical pores. Pores diameter measured by Scanning Electron Microscopy and Small Angle Neutron Scattering lies in the 20-50nm range. Electron Paramagnetic Resonance study gives evidence that radicals still remains in PVDF membrane after track-etching. These radicals allows acrylic acid polymerization to be initiated onto membrane. So radiografted and functionalized membranes are characterized using Infrared Spectroscopy, weighing measurements and Energy Dispersive Spectroscopy. Finally, radiografted poly(acrylic-acid) (PAA) has been selectively labeled by fluorophores and imaged by Confocal Laser Scanning Microscopy. Images show the localisation of PAA specifically inside nanopores.

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hal-00590410 , version 1 (11-03-2015)

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Olivia Cuscito, M.C. Clochard, Stéphane Esnouf, Natacha Betz, Didier Lairez. Nanoporous beta-PVDF membranes with selectively functionalized pores. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2007, 265, pp.309-313. ⟨10.1016/j.nimb.2007.08.089⟩. ⟨hal-00590410⟩
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