《Radical Polymerization Tracked by Single Molecule Spectroscopy》.pdf

Angewandte Chemie DOI: 10.1002/anie.200704196 Polymerization Radical Polymerization Tracked by Single Molecule Spectroscopy** Dominik Wll, Hiroshi Uji-i, Tobias Schnitzler, Jun-ichi Hotta, Peter Dedecker, Andreas Herrmann, Frans C. De Schryver, Klaus Mllen, and Johan Hofkens* Products from polymerization have influenced our daily lives related to the freedom of molecules to move within the tremendously over the past hundred years. It is therefore not monomer solution or matrix formed by the polymer. FCS surprising that enormous efforts have been and are being measures the time diffusing molecules remain within a made to fully understand each detail of the polymerization defined volume and allowed determination of D process. Prominent examples of analytical techniques used 1013 2 m s up to high conversions U before motion became are ESR spectroscopy,[1] pulsed-laser-initiated polymerization too slow and thus limited the applicability of this method. in conjunction with size-exclusion chromatography[2] and Wide-field microscopy (WFM) directly visualizes the position mass spectrometry,[3] as well as NMR[4] and fluorescence of fluorescent molecules and is a suitable method to track spectroscopy.[5– ]