SKM 2021 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 4: Focus: The Physics of Adaptive Polymer Networks

CPP 4.2: Hauptvortrag

Dienstag, 28. September 2021, 10:30–11:00, H3

Adaptive networks through supramolecular interactions — •Ilja Voets — Department of Chemical Engineering and Chemistry & Institute for Complex Molecular Systems, Eindhoven University of Technology

Supramolecular interactions offer a powerful tool to modulate self-assembly pathways to generate dynamic materials with adaptive properties. In this lecture I will showcase two versatile, supramolecular approaches to generate adaptive, polymer-based materials, based on electrostatically driven co-assembly of ionic-neutral block copolymers and on amphiphilic copolymers equipped with suitable motifs, such as C3-symmetrical discotics based on benzene-1,3,5-tricarboxamides (BTAs), encoded to form one-dimensional helical 'stacks'. I will discuss the structure and properties of the micellar and fibrillar objects that these materials form in dilute aqueous solution, and of the transient networks which emerge at elevated concentrations. Recent efforts and insights in e.g. polyelectrolyte complexation out-of-equilibrium, strain stiffening, high resolution optical imaging and templated polymerization will be addressed. In future, these concepts may be exploited to further custom-tailor gels towards a desired structure and associated mechanical response.