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Enhancing polycaprolactone with levulinic acid-extracted lignin: toward sustainable bio-based polymer blends

2025-07-14Artigo científico Acesso aberto
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datacite.subject.sdg12:Produção e Consumo Sustentáveis
datacite.subject.sdg09:Indústria, Inovação e Infraestruturas
datacite.subject.sdg13:Ação climática
dc.contributor.authorMelro, Elodie
dc.contributor.authorDuarte, Hugo
dc.contributor.authorAntunes, Filipe E.
dc.contributor.authorValente, Artur J. M.
dc.contributor.authorRomano, Anabela
dc.contributor.authorMedronho, Bruno
dc.date.accessioned2026-01-13T09:47:42Z
dc.date.available2026-01-13T09:47:42Z
dc.date.issued2025-07-14
dc.description.abstractThe growing demand for sustainable materials has intensified the search for biodegradable polymers. Poly(ε-caprolactone) (PCL), though biodegradable, is fossil-derived. In this study, a novel lignin extracted from pine wood using a green solvent was incorporated into PCL and compared with commercial lignins (dealkaline, alkaline, and lignosulfonate). The lignin additions imparted antioxidant properties, enhanced thermal stability, and promoted circular economy goals through lignin valorization. Notably, the green-extracted lignin showed superior compatibility with PCL when compared with commercial lignins, as evidenced by lower water uptake and solubility, and improved surface hydrophobicity (higher contact angle). Although the addition of lignin reduced the tensile strength and elongation at break, it greatly increased the PCL radical scavenging activity (DPPH) from 8 ± 1% of neat PCL to 94.8 ± 0.3% when 20 wt% of lignin-LA was added. Among the tested lignins, lignin-LA stands out as the most promising candidate to be applied as a functional additive in biodegradable polymer blends and composites for advanced sustainable applications. Not only given its intrinsically higher sustainability but also due to its capacity for improving the thermal properties of PCL–lignin blends.eng
dc.description.sponsorshipUID/QUI/00313/2020
dc.identifier.doi10.3390/jcs9070366
dc.identifier.issn2504-477X
dc.identifier.urihttp://hdl.handle.net/10400.1/28083
dc.language.isoeng
dc.peerreviewedyes
dc.publisherMDPI
dc.relationMediterranean Institute for Agriculture, Environment and Development
dc.relationMediterranean Institute for Agriculture, Environment and Development
dc.relationCHANGE - Global Change and Sustainability Institute
dc.relation.ispartofJournal of Composites Science
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectBiodegradable polymers
dc.subjectPoly(ε-caprolactone) (PCL)
dc.subjectLignin
dc.subjectLevulinic acid
dc.subjectSustainable materials
dc.titleEnhancing polycaprolactone with levulinic acid-extracted lignin: toward sustainable bio-based polymer blendseng
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleMediterranean Institute for Agriculture, Environment and Development
oaire.awardTitleMediterranean Institute for Agriculture, Environment and Development
oaire.awardTitleCHANGE - Global Change and Sustainability Institute
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F05183%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F05183%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0121%2F2020/PT
oaire.citation.issue7
oaire.citation.titleJournal of Composites Science
oaire.citation.volume9
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameDuarte
person.familyNameRomano
person.familyNameMedronho
person.givenNameHugo
person.givenNameAnabela
person.givenNameBruno
person.identifier.ciencia-id8416-555E-B56F
person.identifier.ciencia-id8A18-7E9A-3B0E
person.identifier.ciencia-id6918-9AB3-8D22
person.identifier.orcid0000-0001-6461-3541
person.identifier.orcid0000-0002-7204-7428
person.identifier.orcid0000-0003-0972-1739
person.identifier.ridP-5927-2014
person.identifier.scopus-author-id56249997600
person.identifier.scopus-author-id9940656700
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
relation.isAuthorOfPublicationfb54c1ac-5e80-424a-acbe-989daacb3b14
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relation.isAuthorOfPublication.latestForDiscoveryfb54c1ac-5e80-424a-acbe-989daacb3b14
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