130678 20240130150402.0 doi 10.1021/acsapm.0c00036 sideral 117671 ART-2020-117671 eng Audia, Biagio Influence of photoanisotropies on light-controllable structuration of azopolymer surface 2020 The capability to optically control surface structuration of azopolymer films is an important goal in different research fields, enabling remote activation and tuning of associated processes mediated by the surface. In this work, two amorphous azopolymers, structurally engineered in order to exhibit linear and circular photoinduced optical anisotropies, have been investigated, with the aim to design complex light-reconfigurable topographical structures. Different intensity and polarization patterns were generated by two- or four-beams interferometry and inscribed on the polymer films. Relief depths in the range of hundreds of nanometers have been produced, mediated by the bulk photoinduced anisotropies of the materials. It is shown that, on the basis of the kind of light patterns (intensity and/or polarization), depth and shape of the relief grating can be tuned. Polymers with higher photoinduced birefringences enable one to produce deeper reliefs. Bidimensional light polarization patterns generate complex surface structures, even with chiral features, envisaging the possibility to engineer large area opto-controllable surfaces and platforms. Access copy available to the general public Unrestricted info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 4.089 2020 POLYMER SCIENCE 22 / 87 = 0.253 2020 Q2 T1 MATERIALS SCIENCE, MULTIDISCIPLINARY 127 / 333 = 0.381 2020 Q2 T2 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Pagliusi, Pasquale Provenzano, Clementina Roche, Alejandro (orcid)0000-0003-1391-3725 Oriol, Luis Universidad de Zaragoza (orcid)0000-0002-0922-5615 Cipparrone, Gabriella 2013 765 Universidad de Zaragoza Dpto. Química Orgánica Área Química Orgánica 2, 4 (2020), 1597-1604 ACS appl. polymer. mater. ACS applied polymer materials 2637-6105 1406746 http://zaguan.unizar.es/record/130678/files/texto_completo.pdf Postprint 730151 http://zaguan.unizar.es/record/130678/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:130678 articulos driver 2024-01-30-14:07:01 ARTICLE