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-Oct-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
Appears in Collections:Articles