Observation of photoluminescence in polypyrrole micelles

Photoluminescence (PL) was observed from micelles of polypyrrole without substituent groups. CHCl 3 and CCl 4 as well as 2,2,6,6-tetramethyl-1-piperidinyloxy (TEMPO) showed a typical fluorescence quenching behavior that can be observed when quencher molecules are added to a micellar solution of fluo...

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Veröffentlicht in:	Synthetic metals 2005-04, Vol.150 (2), p.127-131
Hauptverfasser:	Jang, Kwan Sik, Ko, Heung Cho, Moon, Bongjin, Lee, Hoosung
Format:	Artikel
Sprache:	eng
Schlagworte:	Anionic surfactant-doped polypyrrole Applied sciences Exact sciences and technology Highly soluble polypyrrole Organic polymers Photoluminescence of polypyrrole Photoluminescence quenching in micelles Physicochemistry of polymers Polypyrrole micelles Properties and characterization Solution and gel properties
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Beschreibung
Zusammenfassung:	Photoluminescence (PL) was observed from micelles of polypyrrole without substituent groups. CHCl 3 and CCl 4 as well as 2,2,6,6-tetramethyl-1-piperidinyloxy (TEMPO) showed a typical fluorescence quenching behavior that can be observed when quencher molecules are added to a micellar solution of fluorescent material. At higher concentrations, the PL intensity decreased due to quenching in the aggregate phase and self-absorption. The PL intensity varied depending upon the solvent in the order of dimethyl sulfoxide (DMSO) > N, N-dimethylformamide (DMF) > N-methyl-2-pyrrolidinone (NMP) > ethanol > toluene > tetrahydrofuran (THF).
ISSN:	0379-6779 1879-3290
DOI:	10.1016/j.synthmet.2005.01.013