Light harvesting and energy transfer within coumarin-labeled polymers

Alex Adronov, Douglas R. Robello, Jean Frechet*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

46 Scopus citations

Abstract

Linear copolymers that have pendant coumarin-2 and coumarin-343 chromophores were prepared as analogues to previously synthesized light-harvesting dendrimers. The chromophore ratios within these polymers were maintained similar to those of the various generation dendrimers to investigate the effect of polymer architecture on the energy-transfer efficiency between the coumarin-2 donors and coumarin-343 acceptors. Both physical and photophysical properties of these polymers were analyzed and compared to those of the analogous dendrimers. Energy-transfer efficiencies were relatively high in the polymers; however, deleterious excimer formation between the coumarin-343 chromophores diminished the quantum yield of fluorescence of the polymers when compared to the analogous dendrimers. Overall, it was found that the ultimate performance of the dendritic light-harvesting antennae was superior to that of the polymeric analogues, but the polymers were more practical in terms of synthetic accessibility.

Original languageEnglish (US)
Pages (from-to)1366-1373
Number of pages8
JournalJournal of Polymer Science, Part A: Polymer Chemistry
Volume39
Issue number9
DOIs
StatePublished - May 1 2001

Keywords

  • Chromophores
  • Energy transfer
  • Flourescence
  • Light harvesting

ASJC Scopus subject areas

  • Polymers and Plastics
  • Organic Chemistry
  • Materials Chemistry

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