Dr Hannes Houck
Dr Hannes Houck
Royal Society University Research Fellow
Research in the Photochemistry for Materials lab:
1. Development of new thermoreversible photocycloaddition reactions
We create new photochemistry platforms capable of undergoing quantitative covalent bond (re)formation under visible light irradiation, while being able to selectively and cleanly revert back into the starting reagents at elevated temperature. The resulting chemical bonding/debonding behaviour is meticulously tuned (e.g. red-shifted absorption, lower retro-reaction barrier) to translate the reversible bonding/debonding in industrially relevant applications.
Further reading:
Angew. Chem. Int. Ed. 2023, 62, e202310274. https://doi.org/10.1002/anie.202310274
Polym. Chem., 2023, 14, 1554-1566. https://doi.org/10.1039/D3PY00027C
2. Photo-modification of polymers to introduce functionality and (bio)degradability
We take and/or make known existing polymers and give these a (re)new(ed), and if possible even improved, functionality. We are particularly investigating photochemical strategies to introduce pre-programmed degradability into polymers that is expressed at their end-of-life.
Further reading:
Angew. Chem. Int. Ed. 2023, 62, e202301102. https://doi.org/10.1002/anie.202301102
3. Intrinsically recyclable polymer materials, including covalent adaptable networks
We rethink how to make robust covalently crosslinked polymer materials, such as thermosets, that can be repaired (self-healing), reprocessed or entirely depolymerised into the initial monomers to allow for a truly closed-loop recycling.
Further reading:
J. Am. Chem. Soc. 2024, 146, 28, 19177–19182. https://doi.org/10.1021/jacs.4c04193
J. Am. Chem. Soc. 2019, 141, 31, 12329–12337. https://doi.org/10.1021/jacs.9b05092
4. Functional new inks for resin-based 3D printing
We are motivated to tackle some fundamental challenges in emerging light-based additive manufacturing technologies, such as resin-based 3D printing, to improve the overall sustainability of light-curing inks.
Further reading:
Adv. Funct. Mater. 2025, 35, 2414713. https://doi.org/10.1002/adfm.202414713