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Keywords = directional photo-fluidization

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Article
Reversible Photo-Induced Reshaping of Imprinted Microstructures Using a Low Molecular Azo Dye
by Burhan Kaban, Sekvan Bagatur, Marcus Soter, Hartmut Hillmer and Thomas Fuhrmann-Lieker
Polymers 2022, 14(3), 586; https://doi.org/10.3390/polym14030586 - 31 Jan 2022
Cited by 4 | Viewed by 3496
Abstract
A blend of low molecular azo glass (AZOPD) and polystyrene (PS) were used for the systematic investigation of photo-induced stretching and recovery of nanoimprinted structures. For this purpose, light and heat was used as recovery stimuli. The AZOPD/PS microstructures, fabricated with thermal nanoimprint [...] Read more.
A blend of low molecular azo glass (AZOPD) and polystyrene (PS) were used for the systematic investigation of photo-induced stretching and recovery of nanoimprinted structures. For this purpose, light and heat was used as recovery stimuli. The AZOPD/PS microstructures, fabricated with thermal nanoimprint lithography (tNIL), comprises three different shapes (circles, crosses and squares) and various concentrations of AZOPD fractions. The results show a concentration-dependent reshaping. Particularly the sample with 43 w-% of the AZOPD fraction have shown the best controllable recovery for the used parameters. A possible explanation for shape recovery might be the stabilizing effect of the PS-matrix. Full article
(This article belongs to the Special Issue Advances in Multifunctional Polymer-Matrix Composites)
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