Novel functional TPE polymers

• Verfasst von: Huang, Wei [VerfasserIn]
• Verfasst von: Bender, Markus [VerfasserIn]
• Verfasst von: Seehafer, Kai [VerfasserIn]
• Verfasst von: Wacker, Irene [VerfasserIn]
• Verfasst von: Schröder, Rasmus R. [VerfasserIn]
• Verfasst von: Bunz, Uwe H. F. [VerfasserIn]
• Titel: Novel functional TPE polymers
• Titelzusatz: aggregation-induced emission, pH response, and solvatochromic behavior
• Verf.angabe: Wei Huang, Markus Bender, Kai Seehafer, Irene Wacker, Rasmus R. Schröder, Uwe H. F. Bunz
• Jahr: 2019
• Umfang: 6 S.
• Fussnoten: First published: 03 December 2018 ; Gesehen am 10.10.2019
• Titel Quelle: Enthalten in: Macromolecular rapid communications
• Ort Quelle: Weinheim : Wiley-VCH, 1980
• Jahr Quelle: 2019
• Band/Heft Quelle: 40(2019,6) Artikel-Nummer 1800774, 6 Seiten
• ISSN Quelle: 1521-3927
• DOI: doi:10.1002/marc.201800774
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: conjugated polymers
• Sach-SW: fluorescence
• Sach-SW: modification
• Sach-SW: selectivity
• K10plus-PPN: 1678630071

Abstract

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.