Dr. Davide Rigo

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Prof. Arjan Kleij

Isopropenyl esters (iPEs) as building blocks for the synthesis and recycling of renewable polyethers with tunable properties

His research focuses on biobased and chemically recyclable plastics. He previously held postdoctoral positions at the National Renewable Energy Laboratory (NREL, USA), BOKU University (Austria), and Aalto University (Finland), specializing in lignin valorization, wood biorefinery, and sustainable chemistry. He holds a joint PhD in Chemistry (summa cum laude) from Ca’ Foscari University of Venice, the University of Sydney, and the University of Trieste, and has a strong background in green chemistry, flow chemistry, and materials characterization.

From 01/06/2025 to

31/05/2027

IMPULSE

The synthesis of novel monomers that combine a bio-origin, scalability, low cost, and structural modularity merged with the synthesis of custom-degradable plastics is one of the major objectives in sustainable development. Realization of these goals can contribute to a circular rather than a linear economy. Within this context, the IMPULSE project aims to develop novel strategies for the catalytic synthesis of renewable polyethers featuring tunable properties using isopropenyl esters (iPEs) as biobased and inexpensive precursors.

The key polymerization strategy that is used entails ring-opening polymerization (ROP) through proper activation of iPEderived oxides using Host-developed catalysts with known potential. The epoxide monomers are obtained through enzymatic epoxidation to streamline the green efforts of this research program. The main strengths of IMPULSE are the versatility of the starting precursors, the possibility of modulating the polyether structures and their properties before or after their synthesis, and the potential for degradation of the polyethers through controlled depolymerization, thereby creating a circular atom approach by repurposing the degradation products.

The creation of a wider range of commercially attractive polyether macromolecules can boost a transition to biobased analogues with a significantly expanded application potential, and an increased tunability of the mechanical, thermal and optical properties while enabling an improved carbon footprint.

This project has received funding from the European Union’s Horizon Europe research and innovation program under grant agreement 101153094.