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Thermochromism of Highly Luminescent Photopolymer Flexible Films Based On Eu (III) Salts Confined in Polysulfone
Here we discuss the influence of two different cations on the emissive properties of the highly emissive [Eu(fod)(4)](−) anion. The studied Eu(III) salts were [C(16)Pyr][Eu(fod)(4)] (1), and the previously reported [Chol][Eu(fod)(4)]. C(16)Pyr stands for N-cetylpyridinium, Chol for cholinium and fod...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7729765/ https://www.ncbi.nlm.nih.gov/pubmed/33261106 http://dx.doi.org/10.3390/ma13235394 |
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author | Outis, Mani Leal, João Paulo Casimiro, Maria Helena Monteiro, Bernardo Pereira, Cláudia Cristina Lage |
author_facet | Outis, Mani Leal, João Paulo Casimiro, Maria Helena Monteiro, Bernardo Pereira, Cláudia Cristina Lage |
author_sort | Outis, Mani |
collection | PubMed |
description | Here we discuss the influence of two different cations on the emissive properties of the highly emissive [Eu(fod)(4)](−) anion. The studied Eu(III) salts were [C(16)Pyr][Eu(fod)(4)] (1), and the previously reported [Chol][Eu(fod)(4)]. C(16)Pyr stands for N-cetylpyridinium, Chol for cholinium and fod for 1,1,1,2,2,3,3-heptafluoro-7,7-dimethyloctane-4,6-dionate. 1 is classified as ionic liquid, with melting point close to 60 °C, and presented a luminescence quantum yield of (ϕ) 100%. Ultrabright emissive photopolymers were obtained for the first time using polysulfone as the host matrix. The films were prepared with incorporation of 10% (w/w) of 1 and [Chol][Eu(fod)(4)] in the polymeric matrix, which improved its thermal stability. Additionally, the luminescence of CholEu(fod)(4)/PSU presented a strong temperature dependence with a ratiometric thermal behavior. |
format | Online Article Text |
id | pubmed-7729765 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-77297652020-12-12 Thermochromism of Highly Luminescent Photopolymer Flexible Films Based On Eu (III) Salts Confined in Polysulfone Outis, Mani Leal, João Paulo Casimiro, Maria Helena Monteiro, Bernardo Pereira, Cláudia Cristina Lage Materials (Basel) Article Here we discuss the influence of two different cations on the emissive properties of the highly emissive [Eu(fod)(4)](−) anion. The studied Eu(III) salts were [C(16)Pyr][Eu(fod)(4)] (1), and the previously reported [Chol][Eu(fod)(4)]. C(16)Pyr stands for N-cetylpyridinium, Chol for cholinium and fod for 1,1,1,2,2,3,3-heptafluoro-7,7-dimethyloctane-4,6-dionate. 1 is classified as ionic liquid, with melting point close to 60 °C, and presented a luminescence quantum yield of (ϕ) 100%. Ultrabright emissive photopolymers were obtained for the first time using polysulfone as the host matrix. The films were prepared with incorporation of 10% (w/w) of 1 and [Chol][Eu(fod)(4)] in the polymeric matrix, which improved its thermal stability. Additionally, the luminescence of CholEu(fod)(4)/PSU presented a strong temperature dependence with a ratiometric thermal behavior. MDPI 2020-11-27 /pmc/articles/PMC7729765/ /pubmed/33261106 http://dx.doi.org/10.3390/ma13235394 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Outis, Mani Leal, João Paulo Casimiro, Maria Helena Monteiro, Bernardo Pereira, Cláudia Cristina Lage Thermochromism of Highly Luminescent Photopolymer Flexible Films Based On Eu (III) Salts Confined in Polysulfone |
title | Thermochromism of Highly Luminescent Photopolymer Flexible Films Based On Eu (III) Salts Confined in Polysulfone |
title_full | Thermochromism of Highly Luminescent Photopolymer Flexible Films Based On Eu (III) Salts Confined in Polysulfone |
title_fullStr | Thermochromism of Highly Luminescent Photopolymer Flexible Films Based On Eu (III) Salts Confined in Polysulfone |
title_full_unstemmed | Thermochromism of Highly Luminescent Photopolymer Flexible Films Based On Eu (III) Salts Confined in Polysulfone |
title_short | Thermochromism of Highly Luminescent Photopolymer Flexible Films Based On Eu (III) Salts Confined in Polysulfone |
title_sort | thermochromism of highly luminescent photopolymer flexible films based on eu (iii) salts confined in polysulfone |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7729765/ https://www.ncbi.nlm.nih.gov/pubmed/33261106 http://dx.doi.org/10.3390/ma13235394 |
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