Oral presentation

3.5 Sustainable UV-Cured polymers from ligning-derived biomass precursors

Marco Sangermano

Professor

Politecnico di Torino

Industrial pulp and paper process represent a large market that can allow the use of by-product to avoid waste production and reduce pollution. Lignin represents the most available side product that can be used to produce bio-based monomer [1].In this study different ligning-derived biobased monomers have been synthesized and exploited both in cationic and radical UV-Curing [2]. Reactivity of curing process was investigated, and the crosslinked materials fully characterized. An easy tailoring of the properties of the final UV-cured coatings is demonstrated by varying the ratio of the monofunctional-difunctional epoxy monomer or by in-situ generation of hybrid organic-inorganic networks. The same formulations were processed in 3D-printing using the hot-lithography technique when processing epoxy monomers [3]. Finally, UV-Cured composites were achieved by exploiting the frontal induced photopolymerization process [4].

References:

1. 362. T. Robert, S. Eschig, M. Sangermano, M. Ocepek “Bio-based aromatic building blocks for coating applications”, Current Opinion in Green and Sustainable Chemistry, 49, 100962 (1 of 7), 2024.

2. L. Pezzana, G. Melilli, G. Nathanaël, N. Sbirrazzuoli, M. Sangermano, “Cationic UV-Curing of bioderived epoxy furan-based coatings”, ACS Sustainable Chemistry & Engineering, 9, 17403, 2021.

3. L. Pezzana, R Wolff, G. Melilli, N Guigo, N. Sbirrazzuoli, J. Stampfl, R. Liska, M. Sangermano, “Hot lithography 3D-printing of biobased epoxy resins”, Polymer, 254, 125097, 2022.

4. 361. D. Moraru, A. Cortés, D. Martinez-Diaz, S. G. Prolongo, A. Jiménez-Suárez, M. Sangermano, “Sustainable electrically conductive bio-based composites via radical-induced cationic frontal photopolymerization”, Polymers, 16, 2159 (1 of 11), 2024.

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