Christopher Barner-Kowollik, professor at the Queensland University of Technology (Brisbane, Australia) is at the IPCM on April 28, 2023

As part of his lecture tour as CNRS ambassador of chemical sciences in France, Christopher Barner-Kowollik proposes, after the seminar entitled “Photochemically Reactive Particles: From Single-Chain Nanoparticles to Microparticles” that he will give in the morning at 10am, to spend the afternoon at the IPCM. It will be an opportunity for all our colleagues to talk science with him. If you want to meet him, contact Jutta Rieger who will plan your visit.

In 2019, the CNRS Institute of Chemistry initiated the “Ambassadors of Chemical Sciences in France” program. Its ambition? To allow prestigious foreign researchers to visit a series of French laboratories active in their field. These visits not only include high-level lectures by the ambassador, but are also an opportunity to establish preliminary contacts and foster international collaborations for the French laboratories visited. 

Contact IPCM Jutta Rieger

Short biography of Christopher Barner-Kowollik

Professor at « Queensland University of Technology (Brisbane, Australia) ».

Our research is focused on the in-depth understanding of photochemical reactions and their application to macromolecular chemistry, in particular advanced light reactive soft matter inks for 3D printing. In particular, we have shown in detailed studies over the last decade that – surprisingly – the absorbance spectra of photoreactive molecules are no reliable predictor of photochemical reactivity. We illustrate this discrepancy via so-called ‘Action Spectra’, where the reactivity of photochemically reactive molecules is probed wavelength-by-wavelength with a tuneable laser system, exposing the reaction to identical numbers of photons at each wavelength. Our action spectra thus allow to determine the optimum wavelength for a given photochemical reaction. These findings have wide ranging implications for designing materials that rely on photochemical curing applications – from dental materials, surface coating systems in the automotive and aerospace industries to 3D printing system. Prof. Barner-Kowollik leads a cross-continental research team at the Karlsruhe Institute of Technology (KIT) and the Queensland University of Technology (QUT). His work has been recognized by a wide array of international awards and fellowships to learned societies.