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Multiple approaches to exploit ferulic acid bio-based epoxy monomer for green thermoset
Politecnico di Torino, Dipartimento di Scienza Applicata e Tecnologia, C.so Duca Degli Abruzzi 24, 10129, Torino, Italy.
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Fibre- and Polymer Technology, Coating Technology. KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Centres, Wallenberg Wood Science Center.ORCID iD: 0000-0002-8348-2273
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Fibre- and Polymer Technology, Coating Technology. KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Centres, Wallenberg Wood Science Center.ORCID iD: 0000-0003-3201-5138
Politecnico di Torino, Dipartimento di Scienza Applicata e Tecnologia, C.so Duca Degli Abruzzi 24, 10129, Torino, Italy.
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2024 (English)In: Industrial crops and products (Print), ISSN 0926-6690, E-ISSN 1872-633X, Vol. 212, article id 118304Article in journal (Refereed) Published
Abstract [en]

Bio-based monomers are under investigation to replace fossil-based materials due to the concerns regarding climate change and depletion of fossil raw materials. Lignin, cellulose and hemicellulose represent the main interesting platform to use for developing new monomers due to their significant abundance. Ferulic acid is one of the moieties derived from lignin which can be suitable for many applications. In this study, the ferulic acid was epoxidated and it was investigated in cationic UV-curing. Due to the limited performance obtained during UV-curing, two alternative strategies were developed to overcome the initial problem of poor material properties. A thiol-ene epoxy system based on the ferulic epoxy derivative and a commercially available thiol as well as a thermally cured system based on pure cationic curing of ferulic acid diepoxy were chosen as alternative methods. The different curing processes were thoroughly investigated by means of FTIR (Fourier transform infrared spectroscopy) and photo-DSC (differential scanning calorimetry). The thermo-mechanical properties of the thermosets employing DMA- (dynamic mechanical analysis) and tensile analysis were deeply evaluated. Finally, the possibility to use the best cured system as an adhesive was raised investigating the shear strength of metallic and composite joined samples using the single lap offset (SLO) test under compression.

Place, publisher, year, edition, pages
Elsevier BV , 2024. Vol. 212, article id 118304
Keywords [en]
Bio-based monomer, Cationic, Ferulic acid, Thiol-ene, Thiol-epoxy, UV-curing
National Category
Polymer Chemistry
Identifiers
URN: urn:nbn:se:kth:diva-344332DOI: 10.1016/j.indcrop.2024.118304ISI: 001203996600001Scopus ID: 2-s2.0-85186542051OAI: oai:DiVA.org:kth-344332DiVA, id: diva2:1844335
Note

QC 20240503

Available from: 2024-03-13 Created: 2024-03-13 Last updated: 2024-05-03Bibliographically approved

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Malmström, EvaJohansson, Mats

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