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https://doi.org/10.3390/polym9070267
| Title: | A new polymer-based fluorescent chemosensor incorporating propane-1,3-dione and 2,5-diethynylbenzene moieties for detection of copper(II) and iron(III) | Authors: | Yang, D Dai, C Hu, Y Liu, S Weng, L Luo, Z Cheng, Y Wang, L |
Keywords: | Copper Fluorescence Irradiation Metal ions Metals Palladium Propane Quenching Sensors Titration Fluorescent chemosensor Fluorescent detection Green photoluminescence High sensitivity Ion detection Potential probes Quenching constant Sonogashira coupling reactions Conjugated polymers |
Issue Date: | 2017 | Citation: | Yang, D, Dai, C, Hu, Y, Liu, S, Weng, L, Luo, Z, Cheng, Y, Wang, L (2017). A new polymer-based fluorescent chemosensor incorporating propane-1,3-dione and 2,5-diethynylbenzene moieties for detection of copper(II) and iron(III). Polymers 9 (7) : 267. ScholarBank@NUS Repository. https://doi.org/10.3390/polym9070267 | Rights: | Attribution 4.0 International | Abstract: | A novel conjugated polymer (PDBDBM) was developed by the polymerization of 1,4-dioctyloxy-2,5-diethynylbenzene with 1,3-bis(4-bromophenyl)propane-1,3-dione based on Pd-catalyzed Sonogashira-coupling reaction. The obtained polymer PDBDBM exhibited bright green photoluminescence under UV irradiation. According to the metal ion titration experiments, PDBDBM showed high sensitivity and selectivity for detection of Cu2+ and Fe3+ over other metal ions. The fluorescent detection limits of PDBDBM were calculated to be 5 nM for Cu2+ and 0.4 ?M for Fe3+ and the Stern-Volmer quenching constant for Cu2+ and Fe3+ were found to be 1.28 × 108 M-1 and 2.40 × 104 M-1, respectively. These results indicated that the polymer can be used as a potential probe for Cu2+ and Fe3+ detection. © 2017 by the authors. | Source Title: | Polymers | URI: | https://scholarbank.nus.edu.sg/handle/10635/178663 | ISSN: | 20734360 | DOI: | 10.3390/polym9070267 | Rights: | Attribution 4.0 International |
| Appears in Collections: | Elements Staff Publications |
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