Jump to main content
Jump to site search

Issue 4, 2007
Previous Article Next Article

Luminescent amphiphilic dendrimers with oligo(p-phenylene vinylene) core branches and oligo(ethylene oxide) terminal chains: syntheses and stimuli-responsive properties

Author affiliations

Abstract

A class of new dendrimers consisting of hydrophobic oligo(p-phenylene vinylene) core branches and hydrophilic oligo(ethylene oxide) terminal chains was synthesized. These amphiphilic dendritic molecules are highly luminescent and exhibit critical micellization behaviors. They also show a lower critical solution temperature (LCST) in an aqueous medium. Both the critical micelle concentration (CMC) and LCST increased with increasing branch number and the ratio of the hydrophilic oligo(ethylene oxide) to hydrophobic oligo(p-phenylene vinylene) moieties. Besides, a temperature-dependent phase transition from a clear to cloudy aqueous solution was observed. The temperature-induced phase transition was also reflected by fluorescence quenching, 1H NMR resonance peak broadening, and UV–vis absorption shift arising from the hydrophobic conjugated core. These changes in the phase structure and photophysical properties were demonstrated to be highly reversible, indicating some interesting stimuli-responsive behaviors.

Graphical abstract: Luminescent amphiphilic dendrimers with oligo(p-phenylene vinylene) core branches and oligo(ethylene oxide) terminal chains: syntheses and stimuli-responsive properties

Back to tab navigation

Publication details

The article was received on 13 Sep 2006, accepted on 20 Oct 2006 and first published on 14 Nov 2006


Article type: Paper
DOI: 10.1039/B613278B
Citation: J. Mater. Chem., 2007,17, 364-371
  •   Request permissions

    Luminescent amphiphilic dendrimers with oligo(p-phenylene vinylene) core branches and oligo(ethylene oxide) terminal chains: syntheses and stimuli-responsive properties

    D. W. Chang and L. Dai, J. Mater. Chem., 2007, 17, 364
    DOI: 10.1039/B613278B

Search articles by author

Spotlight

Advertisements