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Surface Initiated Polymerizations via e-ATRP in Pure Water

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Author(s): Seyed Schwan Hosseiny | Patrick van Rijn

Journal: Polymers
ISSN 2073-4360

Volume: 5;
Issue: 4;
Start page: 1229;
Date: 2013;
Original page

Keywords: atom transfer radical polymerization | electro-chemistry | surface polymerization | thin films | surface chemistry

ABSTRACT
Here we describe the combined process of surface modification with electrochemical atom transfer radical polymerization (e-ATRP) initiated from the surface of a modified gold-electrode in a pure aqueous solution without any additional supporting electrolyte. This approach allows for a very controlled growth of the polymer chains leading towards a steady increase in film thickness. Electrochemical quartz crystal microbalance displayed a highly regular increase in surface confined mass only after the addition of the pre-copper catalyst which is reduced in situ and transformed into the catalyst. Even after isolation and washing of the modified electrode surface, reinitiation was achieved with retention of the controlled electrochemical ATRP reaction. This reinitiation after isolation proves the livingness of the polymerization. This approach has interesting potential for smart thin film materials and offers also the possibility of post-modification via additional electrochemical induced reactions.

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