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Optical evaluation of dansyl derivatives and their implementation in low-cost and flexible dye-doped PMMA platforms for efficient detection of hazardous chemical vapours
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Resumo(s)
This work investigates the creation and analysis of six novel dansyl derivatives (named L1 to L6) and their incorporation into PMMA polymers for environmental sensing purposes. The properties of these derivatives were extensively examined in different solvents and solid states. Notably, they exhibited a significant change in color depending on the solvent's polarity, suggesting their potential to assess microenvironmental polarity. Moreover, these derivatives showed promising capabilities in selectively detecting Cu2+ and Hg2+ metal ions in acetonitrile solution, forming individual species with these metals. Furthermore, their responsiveness to changes in acidity and basicity was explored both in acetonitrile solution and within a PMMA polymer matrix, indicating their potential for pH-sensitive applications. By integrating these derivatives into PMMA polymers, acid-base sensitive materials were produced, suitable for monitoring environmental conditions such as hazardous gas detection and pH level changes. This integration addresses the solubility challenges of dansyl compounds and broadens their use in various sensing applications.
Descrição
E.O thanks FCT / MEC (Portugal) for the individual contract, CEECIND/05280/2022 .
The financial support by the Bulgarian National Science Fund (BNSF) under grant – “Novel styryl and polymethine fluorophores as potential theranostic agents “contract KP-06-М59/1 from 15.11.2021 is gratefully acknowledged by A.K. This work is also developed and acknowledged by A.K. as part of contract BG-RRP-2.004-0002-C01, Laboratory of Organic Functional Materials (Project BiOrgaMCT), Procedure BG-RRP-2.004, Establishing of a network of research higher education institutions in Bulgaria”, funded by BULGARIAN NATIONAL RECOVERY AND RESILIENCE PLAN ”. G.D. thanks to the European Regional Development Fund within the Operational Programme Science and Education for Smart Growth 2014–2020 under the Project Center of Exellence: National center of mechatronics and clean technologies - BG05M2OP001-1.001-0008 for the financial support.
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© 2024 The Authors
Palavras-chave
Acidic vapours detection Dansyl derivatives Dye-doped PMMA polymers Fluorescent chemosensors Solvatochromic properties General Chemical Engineering Process Chemistry and Technology SDG 12 - Responsible Consumption and Production