Junfeng Yan, Bin Li, Bo Yu, Prof. Wilhelm T. S. Huck, Prof. Weimin Liu and Prof. Feng Zhou Controlled Polymer-Brush Growth from Microliter Volumes using Sacrificial-Anode Atom-Transfer Radical Polymerization Angewandte Chemie International Edition 52
Brushing up on polymers: A difference in electrochemical potential allows surface-initiated atom-transfer radical polymerization on a sandwiched metal substrate using microliter volumes. CuI activators are continuously generated and diffuse to the initiator-modified substrate (see scheme), while CuII deactivators maintain polymerization. Polymer-brush gradients of SPMA and complex shapes were produced using this method.
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