Metallo-supramolecular polymers are an interesting class of polymeric materials since they combine the typical character of metals and polymers leading to novel and outstanding features. Furthermore, metal-ligand interaction can feature a reversibility of the binding enabling the design of novel self-healing materials.
For this purpose, terpyridine moieties were incorporated into the side chain of different copolymers using the RAFT polymerization technique.[2,3] Subsequently, metallo-supramolecular polymer networks were prepared by the addition of different metal salts. The healing of the metallopolymers strongly depends on the chosen metal salt. In particular, the metal as well as the counter ion has a strong impact on the healing behavior. Interestingly, the crosslinking with manganese(II) chloride resulted in the best scratch healing ability (Figure 1). Furthermore, the metallopolymers were studied by temperature-dependent rheological measurements and the supramolecular bond life-time (τb) was determined by the crossover of G' and G''. A correlation between the presence of the crossover as well as the ability to close cracks could be revealed. Thus, the mechanical properties could be correlated with the self-healing performance of supramolecular networks.
 M. Enke, D. Döhler, S. Bode, W. H. Binder, M. D. Hager, U. S. Schubert, Adv. Polym. Sci.2016, 273,
 M. Enke, R. K. Bose, S. Bode, J. Vitz, F. H. Schacher, S. J. Garcia, S. van der Zwaag, M. D. Hager, U. S.
Schubert, Macromolecules.2016, 49, 8418-8429.
 S. Bode, M. Enke, R. K. Bose, F. H. Schacher, S. J. Garcia, S. van der Zwaag, M. D. Hager, U. S.
Schubert, J. Mater. Chem. A2015, 3, 22145-22153.
 S. Götz, M. Abend, S. Zechel, M. D. Hager, U. S. Schubert, submitted.