Preparation of polymer–rare earth complex using salicylic acid-containing polystyrene and its fluorescence emission property

Gao, Baojiao; Zhang, Wei; Zhang, Zhengguo; Lei, Qingjuan

doi:10.1016/j.jlumin.2012.01.055

Cited by 35 publications

(17 citation statements)

References 28 publications

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“…(1) The bonded bidentate Schiff base 18 be guessed that for the luminescent Schiff base-type polymer-rare earth complexes, the energy level matching degree can be improved via designing and changing the structure of the bidentate Schiff base ligand SB so that the π-π* photoluminescence of the ligand SB almost completely disappears and the Eu(III) ion emission is strengthened further.…”

Section: Figmentioning

confidence: 99%

“…In our previous studies, aromatic carboxylic acids (benzoic acid, its derivatives and naphthoic acid) as ligands were chemically introduced on the side chains of polystyrene (PS) and polysulfone (PSF) that is one of polymer materials with higher comprehensive properties, and various luminescent polymer-rare earth complexes were prepared. [16][17][18][19] The bonded aromatic carboxylic acid ligands possess the dual functions described above. They not only can coordinate to rare earth ions to form stable chelates, but also can strongly sensitize the fluorescence emission of rare earth ions, greatly enhancing the luminescence property of polymer-rare earth complexes.…”

Section: Introductionmentioning

confidence: 99%

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Preparation and Photoluminescence Properties of Polymer–Rare-Earth Complexes Composed of Bidentate Schiff-Base-Ligand-Functionalized Polysulfone and Eu(III) Ion

2015

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A bidentate Schiff base (SB) ligand was synthesized and bonded on the side chains of polysulfone (PSF) via several polymer reactions by molecular design, and the bidentate Schiff base ligand-functionalized PSF, PSF-SB, was gained. On this basis, a new type of polymer-rare earth complexes, binary complex PSF-(SB) 3 -Eu(Ⅲ) and ternary complex PSF-(SB) 3 -Eu(Ⅲ)-(Phen) 1 , was prepared via the coordination reactions between PSF-SB as macromolecular ligand and 1,10-phenanthroline (Phen) as the second small-molecule ligand and Eu(Ⅲ) ion, respectively. The functional polymer PSF-SB was fully characterized by FTIR, 1 H-NMR and chemical analysis method, and the complexes were also fully characterized by FTIR and UV absorption spectroscopy. The fluorescence emission characteristics and luminescent mechanism of the complexes were investigated in depth. The experimental results show that the macromolecular ligand PSF-SB itself emits strong fluorescence centered at 415 nm. However, after coordinating to Eu(Ⅲ) ion, the fluorescence emission of PSF-SB itself weakens remarkably, and it should be attributed to the intramolecular energy transfer. Both the binary and ternary complexes exhibit the strong characteristic fluorescence emission of Eu(Ⅲ) ion. This fact demonstrates that the bidentate Schiff base ligand SB bonded on the side chains of PSF can effectively produce the intramolecular energy transfer, namely it can strongly sensitize the fluorescence emission of Eu(Ⅲ) ion, indicating that the triplet state energy of the bonded ligand SB is well matched with the resonant level energy of Eu(III) ion. The fluorescence emission intensity of the ternary complex PSF-(SB) 3 -Eu(Ⅲ)-(Phen) 1 is stronger than that of the binary complex PSF-(SB) 3 -Eu(Ⅲ), and it associates with the synergism coordination of the second ligand Phen with the bond ligand SB as well as its effect of substituting the coordinated water molecules around Eu(Ⅲ) ion. structure a larger conjugated aromatic ring is contained, onto the side chain of PSF, and a bidentate Schiff base ligand-functionalized polysulfone, PSF-SB, was successfully prepared through 3-step macromolecular reactions. Finally, the binary and ternary polymer-rare earth (Eu(Ⅲ) and Tb(Ⅲ)) complexes were obtained, and their photoluminescence properties and luminescent mechanism were researched. The study result showed that the bidentate Schiff base ligand bonded to the side chains of PSF, SB, can strongly sensitize the fluorescence emission of Eu(Ⅲ) ion because of the better energy level matching. To our knowledge, the luminescent bidentate Schiff base-type polymer-rare earth complexes have not been reported in the literature. The study result in this work is significant in developing photoluminescence polymer-rare earth complex materials.

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Section: Figmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Preparation and Photoluminescence Properties of Polymer–Rare-Earth Complexes Composed of Bidentate Schiff-Base-Ligand-Functionalized Polysulfone and Eu(III) Ion

2015

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“…Most rare earth complexes select aromatic cyclic carboxylic acids as ligands because they contain conjugate double bonds and rigid plane structures that have good absorption in the ultraviolet region [28][29][30][31]. Nevertheless, this study selected unsaturated fatty acids called 10-Undecenoic acids to coordinate with terbium ions that can emit a bright pure green light.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of a Novel Terbium Complex Coordinated with 10-Undecenoic Acid for UV-Cured Coatings

Jiao

Zhong

Zhou

et al. 2020

International Journal of Polymer Science

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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 Tb 3+ 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 Tb 3+ ion. Furthermore, the luminescence properties of complexes with different ratios of Tb 3+ and ligand were studied, and the ratio of Tb 3+ 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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“…Considerable attention has been paid to design and synthesize polymer/RE luminescent materials with good luminescent properties and high internal quantum efficiencies [6][7][8]. RE-based emitters which are usually doped or bonded with macromolecules can generate characteristically sharp and narrow emissions, because of the distinctive excitation mechanism of antenna effect and f-f radiative transition [9][10][11][12][13][14]. A considerable number of research reports have focused on four kinds of RE metals, i.e., europium (Eu), terbium (Tb), samarium (Sm), and dysprosium (Dy), especially for the Eu or Tb ions based complexes, because their resonance energy levels are close to the triplet levels of organic ligands, and so the RE ions could emit strong luminescent properties via the efficient energy transfer between ligands and RE ions [15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Thermal Stability and Luminescent Properties of Tri-cellulose Acetate Composites Containing Dy(SSA)₃Phen Complex

Sun

Luo

et al. 2018

Journal of Chemistry

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Dysprosium (Dy) ternary complex was prepared using 5-sulfosalicylic acid (SSA) as the first ligand and 1,10-phenanthroline (Phen) as the second ligand, denoted as Dy(SSA)3Phen. The complex was blended with tri-cellulose acetate (TCA) via a cosolvent method to obtain polymer luminescent materials. The composition and structure of the rare-earth complex were characterized by means of elemental analysis, infrared (IR) spectra, and thermogravimetric analysis (TGA). The fluorescence spectra displayed this pure Dy(SSA)3Phen complex, and the TCA/Dy(SSA)3Phen composites all emit blue light. The (90/10) composite possesses fine luminescent properties with quantum yield of 33.5% and thermal stability for potential usage as blue fluorescent materials.

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Preparation of polymer–rare earth complex using salicylic acid-containing polystyrene and its fluorescence emission property

Cited by 35 publications

References 28 publications

Preparation and Photoluminescence Properties of Polymer–Rare-Earth Complexes Composed of Bidentate Schiff-Base-Ligand-Functionalized Polysulfone and Eu(III) Ion

Preparation and Photoluminescence Properties of Polymer–Rare-Earth Complexes Composed of Bidentate Schiff-Base-Ligand-Functionalized Polysulfone and Eu(III) Ion

Preparation and Characterization of a Novel Terbium Complex Coordinated with 10-Undecenoic Acid for UV-Cured Coatings

Thermal Stability and Luminescent Properties of Tri-cellulose Acetate Composites Containing Dy(SSA)₃Phen Complex

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Preparation of polymer–rare earth complex using salicylic acid-containing polystyrene and its fluorescence emission property

Cited by 35 publications

References 28 publications

Preparation and Photoluminescence Properties of Polymer–Rare-Earth Complexes Composed of Bidentate Schiff-Base-Ligand-Functionalized Polysulfone and Eu(III) Ion

Preparation and Photoluminescence Properties of Polymer–Rare-Earth Complexes Composed of Bidentate Schiff-Base-Ligand-Functionalized Polysulfone and Eu(III) Ion

Preparation and Characterization of a Novel Terbium Complex Coordinated with 10-Undecenoic Acid for UV-Cured Coatings

Thermal Stability and Luminescent Properties of Tri-cellulose Acetate Composites Containing Dy(SSA)3Phen Complex

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Thermal Stability and Luminescent Properties of Tri-cellulose Acetate Composites Containing Dy(SSA)₃Phen Complex