Synthesis and characterization of novel hyperbranched fluorescent polymers that can be precisely used for metal ion detection and quantification.

Autor:	Tang, Tengxuan, Guo, Wenbo, Xu, Ying, Xu, Dongmei
Předmět:	FLUORESCENT polymers METAL detectors METAL ions QUANTUM dot synthesis WATER sampling FLUORESCENCE
Zdroj:	Journal of Applied Polymer Science; 8/15/2020, Vol. 137 Issue 31, p1-9, 9p
Abstrakt:	Four novel hyperbranched polymers with 4 or 5 ring‐closed rhodamine units in each were achieved through RAFT polymerization followed by modification with rhodamine moieties. The solubility, thermostability, and photophysical properties of the polymers were studied. The polymers showed high selectivity and sensitivity to Fe3+ among various metal ions in CH3CN/H2O (75/25, v/v) and could signal Fe3+ through multichannels: emerging a new absorption around 558 nm, over 30 nm fluorescence redshift and significant fluorescence enhancement (including 33–37 folds in intensity and 8.3–12.8 folds in quantum yield), accompanied by visual and fluorescent color changes. The polymers could be applied in the analysis of Fe3+ in real water samples. © 2020 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48933. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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