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Efficient energy transfer between amphiphilic dendrimers with oligo(p-phenylenevinylene) core branches and oligo(ethylene oxide) termini in micelles

Authors

  • Dong Wook Chang,

    1. Department of Chemical Systematic Engineering, Catholic University of Daegu, 13-13, Hayang, Gyeongbuk 712-702, South Korea
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  • Seo-Yoon Bae,

    1. Interdisciplinary School of Green Energy/Low-Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology, 100, Banyeon, Ulsan 689-798, South Korea
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  • Liming Dai,

    Corresponding author
    1. Department of Macromolecular Science and Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106
    • Department of Macromolecular Science and Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106
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  • Jong-Beom Baek

    Corresponding author
    1. Interdisciplinary School of Green Energy/Low-Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology, 100, Banyeon, Ulsan 689-798, South Korea
    • Interdisciplinary School of Green Energy/Low-Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology, 100, Banyeon, Ulsan 689-798, South Korea
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Abstract

The efficient fluorescence resonance energy transfer (FRET) between amphiphilic dendrimers with oligo(p-phenylenevinylene) core branches and oligo(ethylene oxide) termini have been observed in micelles. All dendrimers show the critical micelle concentration and lower critical solution temperature as well as fluorescent emission. Tailoring electronic structures of the conjugated amphiphiles for FRET have been conveniently achieved by varying the branch number and/or the conjugated core structure. The Stern-Volmer constants (KSV) for FRET were found to be 4.51 × 10−5 and 8.78 × 10−5 M for Den 30–40 and Den 50–40, respectively. The effects external stimuli such as solvent and temperature on FRET have been also investigated. © 2012 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2013

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