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Dissolution state of cellulose in aqueous systems. 1. Alkaline solvents

2016-02Journal article Restricted access
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dc.contributor.authorAlves, Luis
dc.contributor.authorMedronho, Bruno
dc.contributor.authorAntunes, Filipe E.
dc.contributor.authorTopgaard, Daniel
dc.contributor.authorLindman, Bjorn
dc.date.accessioned2017-04-07T15:57:14Z
dc.date.available2017-04-07T15:57:14Z
dc.date.issued2016-02
dc.description.abstractThe understanding of the state of dissolution of cellulose in a certain solvent is a critical step forward in the development of new efficient solvent systems for cellulose. Nevertheless, obtaining such information is not trivial. Recently, polarization transfer solid-state NMR (PTssNMR) was shown to be a very promising technique regarding an efficient and robust characterization of the solution state of cellulose. In the present study, combining PTssNMR, microscopic techniques and X-ray diffraction, a set of alkaline aqueous systems are investigated. The addition of specific additives, such as urea or thiourea, to aqueous NaOH based systems as well as the use of an amphiphilic organic cation, is found to have pronounced effects on the dissolution efficiency of cellulose. Additionally, the characteristics of the regenerated material are strongly dependent on the dissolution system; typically less crystalline materials, presenting smoother morphologies, are obtained when amphiphilic solvents or additives are used.
dc.identifier.doi10.1007/s10570-015-0809-6
dc.identifier.issn0969-0239
dc.identifier.urihttp://hdl.handle.net/10400.1/9649
dc.language.isoeng
dc.peerreviewedyes
dc.relationDevelopment of sustainable processes for the production of textile fibers from forest resources
dc.relationEFFICIENT LOW-COST GELS OF CROSS-LINKED POLYELECTROLYTES OR CELLULOSE
dc.relation.isbasedonWOS:000368802700014
dc.titleDissolution state of cellulose in aqueous systems. 1. Alkaline solvents
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleDevelopment of sustainable processes for the production of textile fibers from forest resources
oaire.awardTitleEFFICIENT LOW-COST GELS OF CROSS-LINKED POLYELECTROLYTES OR CELLULOSE
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FAGR-TEC%2F4049%2F2012/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F80556%2F2011/PT
oaire.citation.endPage258
oaire.citation.issue1
oaire.citation.startPage247
oaire.citation.titleCELLULOSE
oaire.citation.volume23
oaire.fundingStream3599-PPCDT
person.familyNameMedronho
person.givenNameBruno
person.identifier.ciencia-id6918-9AB3-8D22
person.identifier.orcid0000-0003-0972-1739
person.identifier.ridP-5927-2014
person.identifier.scopus-author-id9940656700
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
rcaap.rightsrestrictedAccess
rcaap.typearticle
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relation.isAuthorOfPublication.latestForDiscovery4c03571a-93da-4504-8acf-c74326449852
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