Michael Schroeter, Marc Behl, Christian Kaiser and Andreas Lendlein Synthesis and Properties of Poly(p-phenylene ethynylene)s with Oxidation- and Reduction-Sensitive Moieties Macromolecular Chemistry and Physics 214
Poly(p-phenylene ethynylene)s (PPEs) with reactive methoxy-substituted moieties are synthesized by the Sonogashira cross-coupling reaction and are used to generate quinone functionalities in the polymer backbone. The polymers can be reversibly reduced to hydroquinones and oxidized to quinones. Optical properties such as fluorescence are comparable to regular PPEs, whereby fluorescence is quenched in the quinone stage.
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