SKM 2023 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

CPP: Fachverband Chemische Physik und Polymerphysik

CPP 58: Polymer Networks and Elastomers

CPP 58.2: Vortrag

Freitag, 31. März 2023, 10:00–10:15, ZEU 255

Effect of π-π stacking interactions on mechanical properties of lignin-based thermosetting resins — •Iuliana Ribca¹, Benedikt Sochor², Marie Betker^{1, 2}, Stephan V. Roth^{1, 2}, Martin Lawoko¹, Michael A. R. Meier^{3, 4}, and Mats Johansson¹ — ¹Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Stockholm, Sweden — ²Deutsches-Elektronen Synchrotron (DESY), Hamburg, Germany — ³Institute of Organic Chemistry (IOC), Materialwissenschaftliches Zentrum MZE, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany — ⁴Institute of Biological and Chemical Systems-Functional Molecular Systems (IBCS-FMS), Karlsruhe Institute of Technology (KIT), Eggenstein-Leopoldshafen, Germany

The transition towards a more sustainable global carbon economy can be achieved by replacing petroleum-based materials with bio-based alternatives. Lignin is the most abundant aromatic resource in nature and a largely unused by-product of the pulp and paper industry. It is considered a good replacement for fossil-based aromatics. One promising strategy for lignin valorization is to produce thermosetting resins. Further applications of these resins require the understanding of their physicochemical properties. An important role on these properties are playing π-π stacking interactions. Different configurations of π-π stacking interactions are favored between the lignin chains, due to the presence of aromatic rings. In this study, it was investigated the effect of π-π stacking interactions on mechanical properties of lignin-based thermosets by small and wide-angle X-ray scattering methods.