Thursday, February 7, 2013

Self-Healing Polymer Coatings Based on Crosslinked Metallosupramolecular Copolymers

Stefan Bode , Linda Zedler , Felix H. Schacher , Benjamin Dietzek , Michael Schmitt ,
Jürgen Popp , Martin D. Hager , * and Ulrich S. Schubert *

Laboratory of Organic and Macromolecular
Chemistry (IOMC)
Friedrich-Schiller-University Jena
Humboldtstr. 10, 07743 Jena, Germany

The authors here describe a self-healing crosslinked polymer with acrylates as the backbone and Iron (II) bis-terpyridine crosslinked junctions.  Some crosslinked materials were able to self-heal in only 40 minutes at 100 C.  They determined that the self-healing process was attributed to the formation of ionic clusters.  The flexibility of the polymer backbone would determined the materials ability to form ionic clusters.  Materials with methylacrylate backbones did not show self-healing properties, while butyl and laurylmethacrylate backbones did.  SEM was used to follow the self-healing process.

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