Academic Seminar (Course)
ONLINE ZOOM
19.02.2025 - All Day
SEMINAR:Tailoring Molecular Topology to Control the Mechanical ...
In this talk, I will summarize recent advances in computational design of new macromolecular materials that make use of nanoscale topologies, such as brushes, networks, and folded loops, that result in exceptional mechanical properties. I will first present physics-based and machine learning approaches that were developed to describe molecular and mesoscale mechanics of polymers and polymer-grafted nanoparticle systems. Following this, I will present strategies for achieving higher strength, toughness, and impact tolerance in soft materials. These strategies involve the use of star polymers and polymer grafted nanoparticles to improve diametrically opposed mechanical properties such as modulus and toughness, while also controlling the time-dependent characteristics of the response. The effect of nanoconfinement (and its release) on the modulus and toughness of polymer-grafted nanoparticles will be discussed. I will conclude with some thoughts on how to translate these findings to new material concepts that could be explored further with synergistic experiments and simulations.