High Efficiency Luminescent Liquid Crystalline Polymers Based on Aggregation-Induced Emission and 'Jacketing' Effect: Design, Synthesis, Photophysical Property, and Phase Structure
| Autor: | Zhen-Qiang Yu, Ming-Li Li, He-Lou Xie, Guo Yang, Long-Hu Yang, Zhi-Wang Luo, Er-Qiang Chen, Dong Shi, Jia-Ru Xu |
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| Rok vydání: | 2017 |
| Předmět: |
chemistry.chemical_classification
Polarized light microscopy Photoluminescence Quenching (fluorescence) Materials science Polymers and Plastics Absorption spectroscopy Organic Chemistry 02 engineering and technology Tetraphenylethylene Polymer 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Inorganic Chemistry chemistry.chemical_compound Differential scanning calorimetry chemistry Materials Chemistry Physical chemistry 0210 nano-technology Luminescence |
| Zdroj: | Macromolecules. 50:9607-9616 |
| ISSN: | 1520-5835 0024-9297 |
| DOI: | 10.1021/acs.macromol.7b01605 |
| Popis: | A series of high efficiency luminescent liquid crystalline polymers (LLCPs) based on aggregation-induced emission (AIE) and the “Jacketing” effect, namely, poly{2,5-bis{[2-(4-oxytetraphenylethylene)-n-alkyl]oxycarbonyl}styrene} (denoted as Pm, m = 2, 4, 6, 8, 10, 12), were successfully designed and synthesized via introducing tetraphenylethylene to the side group with different length spacers. Because of the AIE effect, the resultant LLCPs are completely free of aggregation caused quenching. The photophysical properties and phase behavior were studied via various techniques such as UV–vis absorption spectra, photoluminescence spectra (PL), polarized light microscopy (PLM), differential scanning calorimetry (DSC), and variable temperature one-dimensional wide-angle X-ray diffraction (1D WAXD). The results revealed that the resultant monomers showed typical AIE behavior and the polymers exhibited aggregation enhanced emission (AEE) behavior. Moreover, due to the “Jacketing” effect, the polymers showed high ... |
| Databáze: | OpenAIRE |
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