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Updated: Sep 8, 2025

3D Printing and In Situ Surface Modification via Type I Photoinitiated Reversible Addition-Fragmentation Chain Transfer Polymerization
Published on: February 18, 2022
Photocatalyzed Functionalization of Alkenoic Acids in 3D-Printed Reactors
Alexandra Jorea1,2, Davide Ravelli2, Rodrigo M Romarowski3
1Department of Clinical Surgery, Diagnostics and Pediatrics, Fondazione IRCCS Policlinico San Matteo, Viale Brambilla 74, 27100, Pavia, Italy.
Abstract:
The valorization of alkenoic acids possibly deriving from biomass (fumaric and citraconic acids) was carried out through conversion in important building blocks, such as γ-keto acids and succinic acid derivatives. The functionalization was carried out by addition onto the C=C double bond of radicals generated under photocatalyzed conditions from suitable hydrogen donors (mainly aldehydes) and by adopting a decatungstate salt as the photocatalyst. Syntheses were performed under batch (in a glass vessel) and flow (by using 3D-printed reactors) conditions. The design of the latter reactors allowed for an improved yield and productivity.
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