Self-healing block copolymer films - from mechanistic understanding towards applications in coatings and membranes
Final Report Abstract
During the course of this project, different diblock copolymers with crosslinkable segments have been synthesized and characterized. Regarding our initial aims, we encountered problems during the synthesis of PI-b-PFGE diblock copolymers but substitution of FGE with FMA (furfuryl methacrylate) resulted in dual crosslinkable diblock copolymers of varying composition. The diblock copolymers were crosslinked using different techniques (via UV irradiation or utilizing Diels-Alder [4+2] cycloaddition) yielding in nanostructured and crosslinked block copolymer films. Initial studies indicated the presence of a gyroidal morphology and this will be further investigated. In addition, diblock quartpolymers have been synthesized which offer 3 distinctly different crosslinking possibilities – two of which could already be demonstrated, one of those (CuAAC crosslinking of propargyl acrylate) being selective, thereby not affecting either the PI and the PDMAE segments. In summary, during this project an in-depth understanding regarding the polymerization of monomers featuring crosslinkable moieties in the side chain and the crosslinking of different block copolymers in general has been gained.
Publications
- "Correlation between Scratch Healing and Rheological Behavior for Terpyridine Complex Based Metallopolymers" J. Mater. Chem. A 2015, 3, 22145-22153
S. Bode, M. Enke, R. K. Bose, F. H. Schacher, S. J. Garcia, S. van der Zwaag, M. D. Hager, U. S. Schubert
(See online at https://doi.org/10.1039/c5ta05545h) - "Self-Healing Response in Supramolecular Polymers based on Reversible Zinc-Histidine Interactions" Polymer 2015, 69, 274-282
M. Enke, S. Bode, J. Vitz, F. H. Schacher, M. J. Harrington, M. D. Hager, U. S. Schubert
(See online at https://doi.org/10.1016/j.polymer.2015.03.068) - "The Self-Healing Potential of Triazole-Pyridine-based Metallopolymers", Macromol. Rapid. Commun. 2015, 7, 604-609
B. Sandmann, B. Happ, S. Kupfer, F. H. Schacher, M. D. Hager, U. S. Schubert
(See online at https://doi.org/10.1002/marc.201400468) - "A Metal Salt Dependent Self-Healing Response in Supramolecular Block Copolymers", Macromolecules 2016, 49, 8418-8429
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
(See online at https://doi.org/10.1021/acs.macromol.6b02108) - "Contribution of Hard and Soft Blocks in the Self-Healing of Metal-Ligand-Containing Block Copolymers", Eur. Polym. J. 2017, 93, 417-427
R. K. Bose, M. Enke, A. M. Grande, S. Bode, F. H. Schacher, M. D. Hager, S. J. Garcia, U. S. Schubert, S. van der Zwaag
(See online at https://doi.org/10.1016/j.eurpolymj.2017.06.020) - "Evolution of Microphase Separation with Variations of Segments of Sequence-Controlled Multiblock Copolymers", Macromolecules 2017, 50, 7380-7387
J. Zhang, R. Deubler, M. Hartlieb, L. Martin, J. Tanaka, E. Patyukova, P. D. Topham, F. H. Schacher, S. Perrier
(See online at https://doi.org/10.1021/acs.macromol.7b01831)
