Optical switching behavior of azobenzene/PMMA blends with high chromophore concentration
| Autor: | Claudia Bornholdt, Franz Faupel, Vladimir Zaporojtchenko, Thomas Strunskus, Rainer Herges, Dordaneh Zargarani, Christina Pakula, C. Hanisch |
|---|---|
| Rok vydání: | 2010 |
| Předmět: |
chemistry.chemical_classification
Materials science Photoisomerization Mechanical Engineering Substrate (chemistry) Polymer Chromophore law.invention chemistry.chemical_compound Chemical engineering chemistry Azobenzene Mechanics of Materials law Polymer chemistry Side chain Molecule General Materials Science Crystallization |
| Zdroj: | Journal of Materials Science. 46:2488-2494 |
| ISSN: | 1573-4803 0022-2461 |
| DOI: | 10.1007/s10853-010-5097-9 |
| Popis: | In this article, the authors will present a simple way to produce thin solid organic films, with a content of more than 60 wt% photoactive molecules dispersed in a polymeric matrix showing an almost complete and fully reversible photoisomerization. These high filling factors could be achieved by using branched side chains in the molecules, which prevent crystallization. The chromophores were codissolved with the polymer Polymethylmethacrylate (PMMA) of different Mw in toluene in various concentrations and spin casted onto the substrate. The effect of the Mw of PMMA on the switching kinetics and the agglomeration tendency of different molecule configurations were investigated. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink