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Reversible Photo-Induced Reshaping of Imprinted Microstructures Using a Low Molecular Azo Dye

Burhan Kaban1, Sekvan Bagatur2, Marcus Soter1

  • 1Institute of Nanostructure Technologies and Analytics (INA) and Center for Interdisciplinary Nanostructure Science and Technology (CINSaT), University of Kassel, Heinrich-Plett-Straße 40, 34132 Kassel, Germany.

Polymers
|February 15, 2022
PubMed

Keywords:
azo glassazo materialsdirectional photo-fluidizationnanoimprint lithographyreversible photo-induced reshapingstimuli-sensitive structures

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The reaction of weakly electrophilic aryldiazonium (also called arenediazonium) salts with highly activated aromatic compounds leads to the formation of products with an —N=N— link, called an azo linkage. This reaction, presented in Figure 1, is known as diazo coupling and occurs without the loss of the nitrogen atoms of the aryldiazonium salt. Highly activated aromatic compounds such as phenols or arylamines favor the diazo coupling reaction. The coupling generally occurs at the...
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