Photophysical behaviour of poly(p-phenylene-arylvinylene)s determined by polarized fluorescence spectroscopy

✍ Scribed by Thomas Damerau; Manfred Hennecke; Hans Heinrich Hörhold

• Book ID: 102941395
• Publisher: John Wiley and Sons
• Year: 1995
• Tongue: English
• Weight: 503 KB
• Volume: 196
• Category: Article
• ISSN: 1022-1352
• DOI: 10.1002/macp.1995.021960426

✦ Synopsis

Stationary polarized fluorescence spectra of poly( 1 ,Cphenylene-1 -phenylvinylene), poly( 1,4phenylene-l,2-diphenylvinylene) and poly[ 1,4-phenylene-l,2-bis(4-phenoxyphenyl)vinylene] in tetrahydrofuran solution and in polystyrene films were recorded at room temperature. In these matrices, different behaviour is found concerning the Stokes shift, the degree of polarization and the quantum yield; it is interpreted as a viscosity induced effect. The commonly accepted model of a conjugated polymer chain to consist of independent segments of various length should not be applied to the poly(pheny1ene-arylviny1ene)s studied in this work.