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Synthesis of random copolymers of styrene and arylamino substituted styrenes and their sensitivities towards nitroaromatics |
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| Authors: | Mohamad Zen Eddin Ekaterina F. Zhilina Roman D. Chuvashov Alyona I. Dubovik Alexandr V. Mekhaev Konstantin A. Chistyakov Marina G. Pervova Mikhail I. Kodess Marina A. Ezhikova Anna A. Baranova Konstantin O. Khokhlov Gennady L. Rusinov Egor V. Verbitskiy Valery N. Charushin |
| Affiliation: | 1. Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, Ekaterinburg, Russia Chemical Engineering Institute, Ural Federal University, Ekaterinburg, Russia College of Science, University of Aleppo, Aleppo, Syria Contribution: Formal analysis (equal), Methodology (equal);2. Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, Ekaterinburg, Russia Contribution: Investigation (equal), Methodology (equal);3. Institute of Physics and Technology, Ural Federal University, Ekaterinburg, Russia Contribution: Data curation (equal), Investigation (equal), Methodology (equal), Writing - original draft (equal);4. Chemical Engineering Institute, Ural Federal University, Ekaterinburg, Russia Contribution: Formal analysis (equal), Investigation (equal);5. Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, Ekaterinburg, Russia Contribution: Formal analysis (equal), Investigation (equal);6. Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, Ekaterinburg, Russia Contribution: Formal analysis (equal), Investigation (equal), Methodology (equal);7. Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, Ekaterinburg, Russia Contribution: Investigation (equal), Methodology (equal), Validation (equal), Writing - original draft (equal);8. Institute of Physics and Technology, Ural Federal University, Ekaterinburg, Russia Contribution: Formal analysis (equal), Methodology (equal), Software (equal);9. Institute of Physics and Technology, Ural Federal University, Ekaterinburg, Russia Contribution: Data curation (equal), Resources (equal), Software (equal);10. Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, Ekaterinburg, Russia Chemical Engineering Institute, Ural Federal University, Ekaterinburg, Russia Contribution: Funding acquisition (equal), Project administration (equal), Resources (equal);11. Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, Ekaterinburg, Russia;12. Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, Ekaterinburg, Russia Chemical Engineering Institute, Ural Federal University, Ekaterinburg, Russia Contribution: Supervision (equal), Writing - original draft (equal), Writing - review & editing (equal) |
| Abstract: | Random copolymers of styrene and substituted styrenes bearing arylamino substituents as fluorophore units have been obtained. Their photophysical properties have been investigated by measuring absorption and emission spectra as in solutions as solid-state. All copolymers proved to possess absolute quantum yields up to 0.39 in solution and up to 0.05 in solid-state, depending on their fluorophore substituents. Fluorescence studies have shown that these copolymers show a highly sensitive response towards a diversity of nitroaromatic compounds, both in solutions and in a vapor phase. The detection limits for these compounds towards model nitroaromatic explosives in dichloromethane solution proved to be in the range from 10−6 to 10−7 mol/L. The fluorescent materials prepared by electrospinning of synthesized copolymers have been evaluated as sensor materials for detecting nitrobenzene vapor for our hand-made sniffer with detection limits of 0.5 ppm during 100-s exposure to the vapor. |
| Keywords: | detection of nitroaromatic explosives fluorescence chemosensors fluorescence quenching pendant copolymers |