  Polymers with the same chemical composition can provide different properties
by reducing the dimension or simply by altering their nanostructure. Recent
literature works report hundreds of examples of advances methods in the
fabrication of polymer nanostructures accomplished following different
approaches, soft lithography, self-assembly routes, template assisted methods,
etc. Polymer nanostructures with modulated morphologies and properties can be
easily achieved from anodized aluminum oxide (AAO) templates assisted methods.
In the last decade, fabrication of polymer nanostructures in the nanocavities
of AAO has raised a great interest since allows the control and tailoring of
dimension of a huge number of polymer and polymer-based composites materials.
The fact that polymer dimension can be adjusted allow the study of
size-dependency properties. Moreover, modulated polymer nanostructures can be
designed for specific applications from AAO templates methods. Taking into
account the last considerations, this review present an overview of recent and
new insights in the fabrication methods of polymer nanostructures from hard
porous Anodic Aluminum Oxide (AAO) templates with emphasis on the study of
polymer structure/property relationship at nanometric scale and stressing the
potential interest in particular applications.
