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Jiao C, Zhong R, Zhou Y, Zhang H. Preparation and Characterization of a Novel Terbium Complex Coordinated with 10-Undecenoic Acid for UV-Cured Coatings. INT J POLYM SCI 2020; 2020:1-8. [DOI: 10.1155/2020/2175259] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A UV-cured composite containing a rare earth complex was prepared for this study. First, the photoluminescent terbium complex was synthesized with a long-chain unsaturated fatty acid (10-Undecenoic acid) by a solution precipitation method, resulting in the 10-UA-Tb(III) complex. Its structure was proven by FTIR, elemental analysis, XRD, and TGA. The results indicated that the organic acid ligand successfully coordinated with the Tb3+ ion and that the complex had a chelate bidentate structure. The emission spectrum of the 10-UA-Tb(III) complex indicated that the complex can emit a bright green light with the unique luminescence of the Tb3+ ion. Furthermore, the luminescence properties of complexes with different ratios of Tb3+ and ligand were studied, and the ratio of Tb3+ and the ligand had an obvious impact on the luminescence intensity of the 10-UA-Tb(III) complex. Subsequently, the prepared rare earth complex was doped into a UV-cured coating in different proportions to obtain a UV-cured composite. The morphology of the rare earth UV-cured composite was observed by SEM. The images showed that the rare earth complex was dispersed uniformly in the polymer matrix. Moreover, the composites could emit fluorescence. Additionally, it has good thermal stability and compatibility with the resin. Therefore, these composites should have potential applications in UV curable materials, such as luminescence coatings.
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Fromentin E, Lebeau D, Bergounioux A, Ferry M, Reiller PE. Interactions between hydro-soluble degradation products from a radio-oxidized polyesterurethane and Eu(III) in contexts of repositories for low and intermediate level radioactive waste. RADIOCHIM ACTA 2019. [DOI: 10.1515/ract-2019-3122] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The complexation of Eu(III) by hydro-soluble degradation products (HDPs) from a radio-oxidized polyesterurethane is investigated. The polyesterurethane Estane 5703® (PURe) is radio-oxidized at 1000 kGy with γ-rays at room temperature. The polymer is then hydrolysed by a simplified artificial cement pore water solution (pH 13.3) for 31 days at 60 °C. The HDPs within the leachate are characterized using gas chromatography-mass spectrometry, ionic chromatography, and TOC analyser. The complexation of Eu(III) is studied by time-resolved luminescence spectroscopy (TRLS). The main HDPs are adipic acid – hexane-1,6-dioic acid – and butane-1,4-diol. Unlike HDPs from non-irradiated PURe, the HDPs from 1000 kGy γ-irradiated PURe do form complexes with Eu(III) at pH 13.3. Neither adipate nor butane-1,4-diol are responsible for this complexation. The existence of several types of complexes is evidenced by TRLS and electrospray ionization mass spectroscopy (ESI-MS): complexation reactions and operational constants are proposed. The complexes formed at high pH (from 10 to 13) are different from the lower pH complexes. The lower pH complexes are studied by ESI-MS and two ligands are identified: adipate and an oligomer.
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Affiliation(s)
- Elodie Fromentin
- Den – Service d’Études du Comportement des Radionucléides (SECR), CEA, Université Paris-Saclay, F-91191 , Gif-sur-Yvette Cedex , France
| | - Diane Lebeau
- Den – Service d’Études du Comportement des Radionucléides (SECR), CEA, Université Paris-Saclay, F-91191 , Gif-sur-Yvette Cedex , France
| | - Alexandre Bergounioux
- Den – Service d’Études du Comportement des Radionucléides (SECR), CEA, Université Paris-Saclay, F-91191 , Gif-sur-Yvette Cedex , France
| | - Muriel Ferry
- Den – Service d’Études du Comportement des Radionucléides (SECR), CEA, Université Paris-Saclay, F-91191 , Gif-sur-Yvette Cedex , France
| | - Pascal E. Reiller
- Den – Service d’Etudes Analytiques et de Réactivité des Surfaces (SEARS), CEA, Université Paris-Saclay, F-91191 , Gif-sur-Yvette Cedex , France
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Farat OK, Kharcheva AV, Ioutsi VA, Borisova NE, Reshetova MD, Patsaeva SV. Europium complex of 2,2′-bipyridine-6,6′-dicarboxylic acid bis[di(phosphonomethyl)amide] as a new efficient water-soluble luminescent dye. Mendeleev Communications 2019; 29:282-4. [DOI: 10.1016/j.mencom.2019.05.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Fromentin E, Reiller PE. Influence of adipic acid on the speciation of Eu(III): Review of thermodynamic data in NaCl and NaClO4 media, and a new determination of Eu-adipate complexation constant in 0.5 mol·kgw−1 NaClO4 medium by time-resolved luminescence spectroscopy. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2018.06.035] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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