Ln3+-Induced Diblock Copolymeric Aggregates for Fully Flexible Tunable White-Light Materials
Abstract
:1. Introduction
2. Materials and Methods
2.1. Materials
2.2. Characterization
2.3. Preparation of Diblock Copolymers: Polystyrene-Block-Polyacrylic Acid (PS-b-PAA)
2.3.1. Synthesis of RAFT Agent
2.3.2. Preparation of Diblock Copolymers PS-b-PAA
2.3.3. Synthesis of Eu3+/Tb3+ Complexes
(1) Synthesis of EuCl3·6H2O and TbCl3·6H2O
(2) Synthesis of Eu3+/Tb3+ Complexes
3. Results and Discussion
3.1. The Structure of Polymeric Aggregates
3.1.1. X-ray Photoelectron Spectroscopy (XPS)
3.2. Morphologies of Polymeric Assemblies.
3.3. Fluorescence Property and White Light Performance
4. Conclusions
Supplementary Materials
Author Contributions
Funding
Conflicts of Interest
References
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Measurement | Characteristics of Equipment |
---|---|
1H NMR spectra | JNM-ECP600 (600 MHz) spectrometer JEOL Ltd, Kyoto, Japan, CDCl3 as the solvent |
UV/vis spectra | UV755B spectrophotometer, Youke, Shanghai, China at room temperature |
NIR spectra | infrared spectrometer, Nicolet 5700, Thermo Fisher Scientific, Varian, Inc., Palo Alto, CA, USA |
XPS spectra | Kratos spectrometer, XSAM-800, ESCALAB, London, UK |
TEM micrographs | JEM-1200EX electron microscope, JEOL Ltd., Kyoto, Japan |
EDS mapping | JEM-2100 high-resolution transmission electron microscope, JEOL, Kyoto, Japan |
Fluorescent spectra | fluorescence spectrophotometer (Varian, Inc., Palo Alto, CA, USA) at ambient temperature |
TG curves | Thermo gravimetric analysis, SII TG/DTA 6300, Waltham, MA, USA |
Lifetime | Fluorescence Spectrometer, FLS980, Edinburgh, UK |
Samples | Elements | |||
---|---|---|---|---|
C (Atomic%) | O (Atomic%) | Eu (Atomic%) | Tb (Atomic%) | |
a | 86.02 | 13.35 | 0.45 | 0.19 |
b | 87.01 | 12.70 | 0.19 | 0.10 |
c | 77.68 | 22.10 | 0.13 | 0.009 |
d | 92.48 | 7.14 | 0.11 | 0.27 |
e | 88.85 | 10.70 | 0.11 | 0.33 |
Samples | Decomposition Temperature (°C) |
---|---|
BCPs | 192 |
BCPs-Ln3+-Phen | 240 |
Excitation Wavelength (nm) | CIE Coordinates |
---|---|
330 | (0.404, 0.416) |
333 | (0.386, 0.396) |
336 | (0.364, 0.368) |
340 | (0.341, 0.338) |
341 | (0.337, 0.334) |
342 | (0.335, 0.332) |
345 | (0.324, 0.320) |
350 | (0.258, 0.239) |
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Wang, X.; Tang, J.; Wang, G.; Wang, W.; Ren, J.; Ding, W.; Zhang, X.; Wang, Y.; Shen, W.; Huang, L.; et al. Ln3+-Induced Diblock Copolymeric Aggregates for Fully Flexible Tunable White-Light Materials. Nanomaterials 2019, 9, 363. https://doi.org/10.3390/nano9030363
Wang X, Tang J, Wang G, Wang W, Ren J, Ding W, Zhang X, Wang Y, Shen W, Huang L, et al. Ln3+-Induced Diblock Copolymeric Aggregates for Fully Flexible Tunable White-Light Materials. Nanomaterials. 2019; 9(3):363. https://doi.org/10.3390/nano9030363
Chicago/Turabian StyleWang, Xinzhi, Jianguo Tang, Guanghui Wang, Wei Wang, Junjie Ren, Wei Ding, Xinbo Zhang, Yao Wang, Wenfei Shen, Linjun Huang, and et al. 2019. "Ln3+-Induced Diblock Copolymeric Aggregates for Fully Flexible Tunable White-Light Materials" Nanomaterials 9, no. 3: 363. https://doi.org/10.3390/nano9030363