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Novel functional TPE polymers: aggregation-induced emission, pH response, and solvatochromic behavior

Four tetraphenylethylene (TPE)-based aryleneethynylene polymers with amino or nitro groups are reported. They display strong aggregation-induced emission (AIE). The functional groups trigger acidochromic changes in the emission behavior of these polymers. Amino-substituted P1-P3 exhibit pH response...

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Bibliographische Detailangaben
Hauptverfasser: Huang, Wei (VerfasserIn) , Bender, Markus (VerfasserIn) , Seehafer, Kai (VerfasserIn) , Wacker, Irene (VerfasserIn) , Schröder, Rasmus R. (VerfasserIn) , Bunz, Uwe H. F. (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 2019
In: Macromolecular rapid communications
Year: 2019, Jahrgang: 40, Heft: 6
ISSN:1521-3927
DOI:10.1002/marc.201800774
Online-Zugang:Verlag, Volltext: https://doi.org/10.1002/marc.201800774
Verlag, Volltext: https://onlinelibrary.wiley.com/doi/abs/10.1002/marc.201800774
Volltext
Verfasserangaben:Wei Huang, Markus Bender, Kai Seehafer, Irene Wacker, Rasmus R. Schröder, Uwe H. F. Bunz
Beschreibung
Zusammenfassung:Four tetraphenylethylene (TPE)-based aryleneethynylene polymers with amino or nitro groups are reported. They display strong aggregation-induced emission (AIE). The functional groups trigger acidochromic changes in the emission behavior of these polymers. Amino-substituted P1-P3 exhibit pH response through protonation of the amino groups. The position of the amino groups (on TPE or the side chains) influences the fluorescence intensity or emission wavelength as a response to different pH values. Nitro-P4 is solvatochromic due to its donor-acceptor structure. AIE, intramolecular charge transfer, and Förster resonance energy transfer define the fluorescence-based performance of the polymers. The amino-functionalized TPE polymers show excellent nitroarene-sensing performance. P4 is less effective than the amino polymers. A sensor array based on P1-P3 identifies 12 different nitroarenes in water.
Beschreibung:First published: 03 December 2018
Gesehen am 10.10.2019
Beschreibung:Online Resource
ISSN:1521-3927
DOI:10.1002/marc.201800774

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