標題: | Monomeric and aggregation emissions of tetraphenylethene in a photo-switchable polymer controlled by cyclization of diarylethene and solvent conditions |
作者: | Singh, Ravinder Wu, Hsin-Yen Dwivedi, Atul Kumar Singh, Ashutosh Lin, Chien-Min Raghunath, Putikam Lin, Ming-Chang Wu, Tung-Kung Wei, Kung-Hwa Lin, Hong-Cheu 材料科學與工程學系 生物科技學系 應用化學系 Department of Materials Science and Engineering Department of Biological Science and Technology Department of Applied Chemistry |
公開日期: | 14-十月-2017 |
摘要: | A novel photo-switchable polymer P-PHT containing diarylethene (DAE) and tetraphenylethene (TPE) moieties and a triazole linker in the repeating unit was synthesized to study the aggregation-induced emission (AIE) behaviour of TPE with both the open and closed forms of DAE in P-PHT with high water contents. The photo-switching phenomena of DAE (from open to closed forms under UV-irradiation) in P-PHT were prominent in organic solvent (THF), high water contents (at 90% H2O) and acidic conditions. Upon UV-irradiation of P-PHT at 90% water content, the AIE of TPE was completely quenched via an energy transfer event from TPE to cyclized DAE. Interestingly, the rare monomeric emission of TPE was first discovered by the photo-cyclization of DAE in P-PHT compared with the AIE behaviour of TPE with the open form of DAE in P-PHT with AIE favourable conditions of high water content (90% H2O) and acidic conditions. |
URI: | http://dx.doi.org/10.1039/c7tc03071a http://hdl.handle.net/11536/143916 |
ISSN: | 2050-7526 |
DOI: | 10.1039/c7tc03071a |
期刊: | JOURNAL OF MATERIALS CHEMISTRY C |
Volume: | 5 |
起始頁: | 9952 |
結束頁: | 9962 |
顯示於類別: | 期刊論文 |