Aggregation, acidochromicity, and metallochromicity of a pyridine-based poly(aryleneethynylene)
A pyridine-containing poly(aryleneethynylene) (PAE) is investigated, showing surprisingly versatile changes of its photophysical properties in response to external stimuli. Because of agglomeration-induced planarization of the backbone, this PAE exhibits a significant red-shift in absorption and emi...
Gespeichert in:
| Hauptverfasser: | , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
28 January 2014
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| In: |
Macromolecules
Year: 2014, Jahrgang: 47, Heft: 3, Pages: 922-927 |
| ISSN: | 1520-5835 |
| DOI: | 10.1021/ma402615q |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1021/ma402615q
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| Verfasserangaben: | Kai Seehafer, Markus Bender, and Uwe H.F. Bunz |
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| 520 | |a A pyridine-containing poly(aryleneethynylene) (PAE) is investigated, showing surprisingly versatile changes of its photophysical properties in response to external stimuli. Because of agglomeration-induced planarization of the backbone, this PAE exhibits a significant red-shift in absorption and emission, when moving from good to poor solvents. The basic lone pair on the pyridine unit makes this PAE pH-sensitive and imparts metallochromic properties, useful for the potential detection of a wide range of metal cations, resulting in color responses that range from quenching to red-shifted emission. | ||
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