Angewandte Chemie International Edition
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Inside Back Cover: Control of a Living Radical Polymerization of Methacrylates by Light (Angew. Chem. Int. Ed. 35/2012)
Living radical polymerizations can be regulated with an external stimulus, thus dramatically increasing their utility and facilitating a range of applications. In their Communication on page 8850 ff. B. P. Fors and C. J. Hawker report a living radical polymerization that can be activated and deactivated in a dynamic manner with visible light. The picture illustrates the activation of a polymer chain end by an iridium-based catalyst in the presence of light and shows the dormant chain end in the absence of irradiation.