Synthesis and Characterization of Small Molecules and Polymers Based on Tetraphenylethene Derivatives
| Autor: | Chia-Chieh Hsu, 徐嘉杰 |
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| Rok vydání: | 2018 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 106 This thesis presents the synthesis and properties of novel conjugated polymers containing [2.2]paracyclophane and tetraphenylethene and donor-acceptor-donor type of conjugated molecules containing benzothiadiazole and tetraphenylethene. Compared with conventional fluorescent materials, new materials containing tetraphenylethene exhibited high emission in the solid state, well-known aggregation-induced emission. According a series of reaction conditions, we found base and catalyst could optimize the polymerization. These two-dimension conjugated polymers are green fluorescence and DNT could quench its fluorescence in the solid state. Particularly, the emission color of tetraphenylethene derivatives is highly depends on its structure mode in the solid. Here, we choose incorporation fluorine atom to build novel fluorescent materials. Fluorinated substitution benzothiadiazole could decrease efficiency of Suzuki cross-coupling reaction. These fluorinated fluorescent materials display high color contrast in the solid state by thermal stimulus. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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