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Customising sustainable bio-based polyelectrolytes: introduction of charged and hydrophobic groups in cellulose

2024-11-05Journal article Open access
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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.authorMagalhães, Solange
dc.contributor.authorAliaño González, María José
dc.contributor.authorCruz, Pedro F.
dc.contributor.authorRosenberg, Rose
dc.contributor.authorHaffke, Dirk
dc.contributor.authorNorgren, Magnus
dc.contributor.authorAlves, Luís
dc.contributor.authorMedronho, Bruno
dc.contributor.authorRasteiro, Maria da Graça
dc.date.accessioned2026-01-19T13:40:03Z
dc.date.available2026-01-19T13:40:03Z
dc.date.issued2024-11-05
dc.description.abstractAbstract: Cellulose has been widely explored as a sustainable alternative to synthetic polymers in industrial applications, thanks to its advantageous properties. The introduction of chemical modifications on cellulose structure, focusing on cationic and hydrophobic modifications, can enhance its functionality and expand the range of applications. In the present work, cationization was carried out through a two-step process involving sodium periodate oxidation followed by a reaction with the Girard T reagent, yielding a degree of substitution for cationic groups (DScationic) between 0.3 and 1.8. Hydrophobic modification was achieved via esterification with fatty acids derived from commercial plant oils, using an enzyme-assisted, environmentally friendly method. Lipase-catalysed hydrolysis, optimised at 0.25% enzyme concentration and with a 1 h reaction time, produced an 84% yield of fatty acids, confirmed by FTIR and NMR analyses. The degree of substitution for hydrophobic groups (DShydrophobic) ranged from 0.09 to 0.66. The molecular weight (MW) of the modified cellulose derivatives varied from 1.8 to 141 kDa. This dual modification strategy enables the creation of cellulose-based polymers with controlled electrostatic and hydrophobic characteristics, customisable for specific industrial applications. Our approach presents a sustainable and flexible solution for developing cellulose derivatives tailored to diverse industrial needs.eng
dc.description.sponsorshipCEECIND/01014/2018/CP1540/CT0002; UCA/R155REC/2021
dc.identifier.doi10.3390/polym16223105
dc.identifier.issn2073-4360
dc.identifier.urihttp://hdl.handle.net/10400.1/28144
dc.language.isoeng
dc.peerreviewedyes
dc.publisherMDPI
dc.relationFrom Forest to Crops: Development of sustainable bio-based emulsifiers and fungicides for crops protection.
dc.relationMediterranean Institute for Agriculture, Environment and Development
dc.relationCHANGE - Global Change and Sustainability Institute
dc.relationChemical Process Engineering and Forest Products Research Centre
dc.relationChemical Process Engineering and Forest Products Research Centre
dc.relation.ispartofPolymers
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectCellulose
dc.subjectFunctionalisation
dc.subjectCationization
dc.subjectHydrophobicity
dc.subjectVegetable fatty acids
dc.titleCustomising sustainable bio-based polyelectrolytes: introduction of charged and hydrophobic groups in celluloseeng
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleFrom Forest to Crops: Development of sustainable bio-based emulsifiers and fungicides for crops protection.
oaire.awardTitleMediterranean Institute for Agriculture, Environment and Development
oaire.awardTitleCHANGE - Global Change and Sustainability Institute
oaire.awardTitleChemical Process Engineering and Forest Products Research Centre
oaire.awardTitleChemical Process Engineering and Forest Products Research Centre
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/CEEC IND4ed/2021.00399.CEECIND%2FCP1656%2FCT0025/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.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00102%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F00102%2F2020/PT
oaire.citation.issue22
oaire.citation.startPage3105
oaire.citation.titlePolymers
oaire.citation.volume16
oaire.fundingStreamCEEC IND4ed
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameAliaño González
person.familyNameMedronho
person.givenNameMaría José
person.givenNameBruno
person.identifier456042
person.identifier.ciencia-idDD17-3640-DB88
person.identifier.ciencia-id6918-9AB3-8D22
person.identifier.orcid0000-0002-5816-4476
person.identifier.orcid0000-0003-0972-1739
person.identifier.ridP-5927-2014
person.identifier.scopus-author-id57200221253
person.identifier.scopus-author-id9940656700
project.funder.identifierhttp://doi.org/10.13039/501100001871
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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
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
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