Thermochromism of Highly Luminescent Photopolymer Flexible Films Based On Eu (III) Salts Confined in Polysulfone

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)<sub>4</sub>]<sup>−</sup> anion. The studied Eu(III) salts were [C<sub>16</sub>Pyr][Eu(fod)<sub>4</sub>] (<b>1</b>), and the pr...

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Main Authors: Mani Outis, João Paulo Leal, Maria Helena Casimiro, Bernardo Monteiro, Cláudia Cristina Lage Pereira
Format: Article
Language:English
Published: MDPI AG 2020-11-01
Series:Materials
Subjects:
thermal behavior
lanthanide
β-diketonate
polysulfone
polymer films
europium (III), hybrid materials
Online Access:https://www.mdpi.com/1996-1944/13/23/5394
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spelling doaj-80d211bd8696417dbf76b73cdbcb02152020-11-28T00:06:28ZengMDPI AGMaterials1996-19442020-11-01135394539410.3390/ma13235394Thermochromism of Highly Luminescent Photopolymer Flexible Films Based On Eu (III) Salts Confined in PolysulfoneMani Outis0João Paulo Leal1Maria Helena Casimiro2Bernardo Monteiro3Cláudia Cristina Lage Pereira4LAQV-REQUIMTE, Departamento de Química, Universidade Nova de Lisboa, 2829-516 Caparica, PortugalCentro de Química Estrutural (CQE), DECN, Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, 2695-066 Bobadela, PortugalCentro de Ciências e Tecnologias Nucleares (C2TN), Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, 2695-066 Bobadela, PortugalCentro de Química Estrutural (CQE), DEQ, Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, 2695-066 Bobadela, PortugalLAQV-REQUIMTE, Departamento de Química, Universidade Nova de Lisboa, 2829-516 Caparica, PortugalHere we discuss the influence of two different cations on the emissive properties of the highly emissive [Eu(fod)<sub>4</sub>]<sup>−</sup> anion. The studied Eu(III) salts were [C<sub>16</sub>Pyr][Eu(fod)<sub>4</sub>] (<b>1</b>), and the previously reported [Chol][Eu(fod)<sub>4</sub>]. C<sub>16</sub>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. <b>1</b> 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% (<i>w</i>/<i>w</i>) of <b>1</b> and <b>[Chol][Eu(fod)<sub>4</sub>]</b> in the polymeric matrix, which improved its thermal stability. Additionally, the luminescence of <b>CholEu(fod)<sub>4</sub>/PSU</b> presented a strong temperature dependence with a ratiometric thermal behavior.https://www.mdpi.com/1996-1944/13/23/5394thermal behaviorlanthanideβ-diketonatepolysulfonepolymer filmseuropium (III), hybrid materials
collection DOAJ
language English
format Article
sources DOAJ
author Mani Outis
João Paulo Leal
Maria Helena Casimiro
Bernardo Monteiro
Cláudia Cristina Lage Pereira
spellingShingle Mani Outis
João Paulo Leal
Maria Helena Casimiro
Bernardo Monteiro
Cláudia Cristina Lage Pereira
Thermochromism of Highly Luminescent Photopolymer Flexible Films Based On Eu (III) Salts Confined in Polysulfone
Materials
thermal behavior
lanthanide
β-diketonate
polysulfone
polymer films
europium (III), hybrid materials
author_facet Mani Outis
João Paulo Leal
Maria Helena Casimiro
Bernardo Monteiro
Cláudia Cristina Lage Pereira
author_sort Mani Outis
title 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_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_sort thermochromism of highly luminescent photopolymer flexible films based on eu (iii) salts confined in polysulfone
publisher MDPI AG
series Materials
issn 1996-1944
publishDate 2020-11-01
description Here we discuss the influence of two different cations on the emissive properties of the highly emissive [Eu(fod)<sub>4</sub>]<sup>−</sup> anion. The studied Eu(III) salts were [C<sub>16</sub>Pyr][Eu(fod)<sub>4</sub>] (<b>1</b>), and the previously reported [Chol][Eu(fod)<sub>4</sub>]. C<sub>16</sub>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. <b>1</b> 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% (<i>w</i>/<i>w</i>) of <b>1</b> and <b>[Chol][Eu(fod)<sub>4</sub>]</b> in the polymeric matrix, which improved its thermal stability. Additionally, the luminescence of <b>CholEu(fod)<sub>4</sub>/PSU</b> presented a strong temperature dependence with a ratiometric thermal behavior.
topic thermal behavior
lanthanide
β-diketonate
polysulfone
polymer films
europium (III), hybrid materials
url https://www.mdpi.com/1996-1944/13/23/5394
work_keys_str_mv AT manioutis thermochromismofhighlyluminescentphotopolymerflexiblefilmsbasedoneuiiisaltsconfinedinpolysulfone
AT joaopauloleal thermochromismofhighlyluminescentphotopolymerflexiblefilmsbasedoneuiiisaltsconfinedinpolysulfone
AT mariahelenacasimiro thermochromismofhighlyluminescentphotopolymerflexiblefilmsbasedoneuiiisaltsconfinedinpolysulfone
AT bernardomonteiro thermochromismofhighlyluminescentphotopolymerflexiblefilmsbasedoneuiiisaltsconfinedinpolysulfone
AT claudiacristinalagepereira thermochromismofhighlyluminescentphotopolymerflexiblefilmsbasedoneuiiisaltsconfinedinpolysulfone
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