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- W3120326577 abstract "Conjugated fluorescent polymers are very useful materials for chemical and biochemical sensors. Herein we report the synthesis of four novel conjugated coumarin-containing fluorescent co-polymers (P1–P4) by palladium catalyzed Suzuki-Miyaura cross-coupling reaction. 4-Methyl/phenyl coumarin ditriflates and diboronic acids such as benzene-1,4-diboronic acid and 9,9-dioctylfluorene-2,7-diboronic acid were used as coupling partners. All the polymers were well-characterized using NMR and gel permeation chromatography. TGA studies revealed that these polymers are stable over 300 °C. The photophysical properties of these novel polymers were studied by UV–Vis and fluorescence spectroscopy. Among these four polymers, polymer P3 having 4-methylcoumarin and dioctylfluorene as alternating monomers showed intense fluorescence with 0.73 quantum yield in the DMF medium. Polymer P3 was also found as selective fluorescence “turned-off” chemosensor for the detection of Hg(II) and Fe(II)/Fe(III) ions over the other metal ions dissolved in water." @default.
- W3120326577 created "2021-01-18" @default.
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- W3120326577 date "2021-03-01" @default.
- W3120326577 modified "2023-10-16" @default.
- W3120326577 title "Synthesis of novel coumarin containing conjugated fluorescent polymers by Suzuki cross-coupling reactions and their chemosensing studies for iron and mercury ions" @default.
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- W3120326577 doi "https://doi.org/10.1016/j.polymer.2021.123415" @default.
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