Self-assembly of a hydrophobically modified naphthalene-labeled poly(acrylic acid) polyelectrolyte in water:Organic solvent mixtures followed by steady-state and time-resolved fluorescence

Telma Costa, M. G. Miguel, Björn Lindman, Karin Schillén, J. C. Lima, J. Seixas De Melo

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

The solution properties of hydrophobically modified napthalene (Np)-labeled poly(acrylic acid) (PAA) polyelectrolytes were investigated in water:organic solvent mixtures. The photophysical behavior of the polymers was also investigated using steady-state and time-resolved fluorescence. The emission spectra of the high-labeled Np PAA showed the presence of monomer and excimer bands, while with the low-labeled polymer only monomer emission was found. It was also found that the decay times were dependent on the water content of the mixture.

Original languageEnglish
Pages (from-to)3243-3251
Number of pages9
JournalJournal of Physical Chemistry B
Volume109
Issue number8
DOIs
Publication statusPublished - 3 Mar 2005

Keywords

  • Pyrene
  • Fluorescence
  • Pyrene excimer

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