Anodic aluminium oxide: Concurrent SEM and SANS characterisation. Influence of AAO confinement on PEO mean-square displacement |
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Authors: | K Lagrené J-M Zanotti |
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Institution: | (1) Laboratoire Léon Brillouin (CEA-CNRS), CEA Saclay, 91191 Gif-sur-Yvette Cedex, France |
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Abstract: | Anodic aluminium oxide (AAO) membranes are macroscopically
highly ordered systems made of oriented nano-scale parallel
cylindrical channels. The membrane topology is defined by the pore
radius, the inter-pores distance and the pore length. We show by a
combined SANS and SEM study that the membrane morphology can be
tailored by the main anodization parameters: voltage, temperature
and anodization duration. We show that the confinement of an
hydrophilic polymer (poly(ethylene oxide)) inside the pores
is possible. We observe a striking effect of the confinement on the
polymer mean-square displacement as measure by high resolution
neutron quasi-elastic scattering. |
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Keywords: | |
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