Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Optical Evaluation of Dansyl Derivatives and Their Implementation in Low-Cost and Flexible Dye-Doped PMMA Platforms for Efficient Detection of Hazardous Chemical Vapours

Gonçalo Pedro
,
Frederico Duarte
ORCID logo ,
Georgi Dobrikov
* ORCID logo ,
Atanas Kurutos
,
Hugo M Santos
,
José Luis Capelo-Martínez
ORCID logo ,
Elisabete Oliveira
* ORCID logo ,
Carlos Lodeiro
* ORCID logo
Version 1 : Received: 18 December 2023 / Approved: 19 December 2023 / Online: 19 December 2023 (10:53:17 CET)

A peer-reviewed article of this Preprint also exists.

Pedro, G.; Duarte, F.; Dobrikov, G.M.; Kurutos, A.; Santos, H.M.; Capelo-Martinez, J.L.; Oliveira, E.; Lodeiro, C. Optical Evaluation of Dansyl Derivatives and Their Implementation in Low-Cost and Flexible Dye-Doped PMMA Platforms for Efficient Detection of Hazardous Chemical Vapours. Dyes and Pigments 2024, 112042, doi:10.1016/j.dyepig.2024.112042. Pedro, G.; Duarte, F.; Dobrikov, G.M.; Kurutos, A.; Santos, H.M.; Capelo-Martinez, J.L.; Oliveira, E.; Lodeiro, C. Optical Evaluation of Dansyl Derivatives and Their Implementation in Low-Cost and Flexible Dye-Doped PMMA Platforms for Efficient Detection of Hazardous Chemical Vapours. Dyes and Pigments 2024, 112042, doi:10.1016/j.dyepig.2024.112042.

Abstract

This study focuses on the development and characterization of a series of six new dansyl derivatives (L1 to L6) and their integration into PMMA polymers for application in environmental sensing. The photophysical properties of these derivatives were extensively studied in various solvents and in solid state. A remarkable positive solvatochromic effect was observed, indicating their potential in microenvironmental polarity assessment. The dansyl derivatives demonstrated selective sensing capabilities for Cu2+ and Hg2+ metal ions, with the formation of mononuclear species. Additionally, their acid-base responsive nature was explored, revealing potential for pH-sensitive applications. The incorporation of these derivatives into PMMA polymers resulted in acid-base sensitive materials suitable for environmental monitoring, particularly in detecting hazardous gases and changes in pH levels. This integration overcomes the solubility limitations of dansyl compounds and extends their applicability in diverse sensing scenarios.

Keywords

Dansyl derivatives; Fluorescent Chemosensors; dye-doped PMMA polymers; Solvatochromic Properties

Subject

Chemistry and Materials Science, Electronic, Optical and Magnetic Materials

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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