Abstract
Poly(phenylene ethynylene) containing carbazole unit in the main-chain (PPECz) was synthesized by Pd-catalyzed Sonogashira coupling reaction between 3,6-dibromo-9-octylcarbazole and 2,5-dimethoxy-1,4-diethynylbenzene. PPECz in the solution and thin film exhibits obvious luminescence properties, which can be used to detect TNT sensitively. The fluorescence intensity of PPECz thin-film can be quenched 56% by the volatile of 40 μg TNT solid at 60 s at normal atmospheric temperature and pressure. This strategy can provide a platform for developing highly sensitive and efficient chemo sensors for warfare explosives.
Original language | English |
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Pages (from-to) | 102-108 |
Number of pages | 7 |
Journal | Chinese Journal of Luminescence |
Volume | 33 |
Issue number | 1 |
DOIs | |
Publication status | Published - Jan 2012 |
Keywords
- Carbazole
- Fluorescence quenching
- Poly(phenylene ethynylene)
- TNT volatile