Repository logo
 
Publication

Probing cellulose–solvent interactions with self-diffusion NMR: Onium hydroxide concentration and co-solvent effects

2023Journal article Open access
Simple item page
dc.contributor.authorMedronho, Bruno
dc.contributor.authorPereira, Ana
dc.contributor.authorDuarte, Hugo
dc.contributor.authorGentile, L.
dc.contributor.authorRosa Da Costa, Ana
dc.contributor.authorRomano, A
dc.contributor.authorOlsson, U.
dc.date.accessioned2023-03-02T10:36:44Z
dc.date.available2023-03-02T10:36:44Z
dc.date.issued2023
dc.description.abstractThe molecular self-diffusion coefficients were accessed, for the first time, in solutions of microcrystalline cel-lulose, dissolved in 30 wt% and 55 wt% aqueous tetrabutylammonium hydroxide, TBAH (aq), and in mixtures of 40 wt% TBAH (aq) with an organic co-solvent, dimethylsulfoxide (DMSO), through pulsed field gradient stim-ulated echo NMR measurements. A two-state model was applied to estimate alpha (i.e., average number of ions that "bind" to each anhydroglucose unit) and Pb (i.e., fraction of "bound" molecules of DMSO, TBAH or H2O to cellulose) parameters. The alpha values suggest that TBA+ ions can bind to cellulose within 0.5 TBA+ to 2.3 TBA+/ AGU. On the other hand, the Pb parameter increases when raising cellulose concentration for TBA+, DMSO and water in all solvent systems. Data suggests that TBAH interacts with the ionized OH groups from cellulose forming a sheath of bulky TBA+ counterions which consequently leads to steric hindrance between cellulose chains.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.carbpol.2022.120440pt_PT
dc.identifier.issn0144-8617
dc.identifier.urihttp://hdl.handle.net/10400.1/19182
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationMediterranean Institute for Agriculture, Environment and Development
dc.relationNot Available
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectCellulose dissolutionpt_PT
dc.subjectNuclear magnetic resonancept_PT
dc.subjectSelf-diffusionpt_PT
dc.subjectTetrabutylammonium hydroxidept_PT
dc.subjectDimethylsulfoxidept_PT
dc.titleProbing cellulose–solvent interactions with self-diffusion NMR: Onium hydroxide concentration and co-solvent effectspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleMediterranean Institute for Agriculture, Environment and Development
oaire.awardTitleNot Available
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F05183%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/9471 - RIDTI/PTDC%2FASP-SIL%2F30619%2F2017/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/CEEC IND 2018/CEECIND%2F01014%2F2018%2FCP1540%2FCT0002/PT
oaire.citation.startPage120440pt_PT
oaire.citation.titleCarbohydrate Polymerspt_PT
oaire.citation.volume303pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream9471 - RIDTI
oaire.fundingStreamCEEC IND 2018
person.familyNameMedronho
person.familyNameDuarte
person.familyNameRosa da Costa
person.familyNameRomano
person.givenNameBruno
person.givenNameHugo
person.givenNameAna M
person.givenNameAnabela
person.identifier305029
person.identifier.ciencia-id6918-9AB3-8D22
person.identifier.ciencia-id8416-555E-B56F
person.identifier.ciencia-idA418-A85E-5DB1
person.identifier.ciencia-id8A18-7E9A-3B0E
person.identifier.orcid0000-0003-0972-1739
person.identifier.orcid0000-0001-6461-3541
person.identifier.orcid0000-0003-0225-9537
person.identifier.orcid0000-0002-7204-7428
person.identifier.ridP-5927-2014
person.identifier.ridE-2165-2012
person.identifier.scopus-author-id9940656700
person.identifier.scopus-author-id53986075100
person.identifier.scopus-author-id56249997600
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
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication4c03571a-93da-4504-8acf-c74326449852
relation.isAuthorOfPublicationfb54c1ac-5e80-424a-acbe-989daacb3b14
relation.isAuthorOfPublication0ca8c16f-6881-4662-bafc-cc51c5ce8d88
relation.isAuthorOfPublicatione3343b60-17d3-4f5e-a2bf-06f26da69206
relation.isAuthorOfPublication.latestForDiscoverye3343b60-17d3-4f5e-a2bf-06f26da69206
relation.isProjectOfPublication823bd652-ee6c-4479-91c5-06095bc37e9c
relation.isProjectOfPublication61248fcf-25b5-442d-a396-811abb7b04e9
relation.isProjectOfPublication97a56d73-fd64-4ad0-af9b-a40e0e0fb9ac
relation.isProjectOfPublication.latestForDiscovery823bd652-ee6c-4479-91c5-06095bc37e9c

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
1-s2.0-S0144861722013455-main.pdf
Size:
2.31 MB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
3.46 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

FCT2-Artigos (em revistas ou actas indexadas)