Séminaire de Savvas Hatzikiriakos - Université de Bristish Columbia à Vancouver

24 novembre 2022 11:00 » 12:00 — Boreau

In this seminar I will present several structures of a class of newly synthesized amine functionalized polyolefins (patented technology), their rheological, adhesion and self-healing properties. These materials possess tunable rheological properties according to the molecular weight and display autonomous, fast self-healing. The linear viscoelastic properties are modelled using a tube based model developed by Hawke et al., J. Rheol., 2016 to calculate several parameters that describe the individual chain dynamics. The self-healing response is depicted reasonably well using theory to explain polymer networks with reversible bonds developed by Stukalin et al., Macromolecules, 2013. The cooperation between experiments, modelling and theory provide insight into designing new materials with programmable rheological properties and superior self-healing ability. Finally, these materials exhibit excellent adhesive properties with low surface substrates such as polytetrafluoroethynene well known for its antistick properties.

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