Influence of methyl group in a quinoline moiety on optical and light-induced properties of side-chain azo-polymers
| Autor: | O. Kharchenko, Jolanta Kowalonek, V. Smokal, Oksana Krupka, D. Chomicki, Lukasz Skowronski, Beata Derkowska-Zielinska |
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| Rok vydání: | 2021 |
| Předmět: |
Materials science
Photoisomerization Materials Science (miscellaneous) Quinoline Substituent Cell Biology Photochemistry Atomic and Molecular Physics and Optics Photochromism chemistry.chemical_compound chemistry Side chain Moiety Electrical and Electronic Engineering Physical and Theoretical Chemistry Refractive index Biotechnology Methyl group |
| Zdroj: | Applied Nanoscience. 12:897-905 |
| ISSN: | 2190-5517 2190-5509 |
| DOI: | 10.1007/s13204-021-01764-0 |
| Popis: | We present the optical and photochromic properties as well as surface quality of thin films of the methacrylic copolymers containing 2-methylquinoline and quinoline azo-dyes in side chain. The extinction coefficient and refractive index were determined using spectroscopic ellipsometry combined with transmittance measurements. Photo-responsive behavior was investigated by determination of trans–cis photoisomerization rates under irradiation with unpolarized 365 nm light. We found that optical properties as well as photoisomerization rates of investigated polymers are dependent on the presence of a methyl substituent in the 2nd position of the quinoline moiety. The quality of the thin films was examined using Atomic Force Microscopy measurements. |
| Databáze: | OpenAIRE |
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