Publication
On the formation and stability of cellulose-based emulsions in alkaline systems: effect of the solvent quality
| dc.contributor.author | Costa, Carolina | |
| dc.contributor.author | Medronho, Bruno | |
| dc.contributor.author | Filipe, Alexandra | |
| dc.contributor.author | Romano, Anabela | |
| dc.contributor.author | Lindman, Björn | |
| dc.contributor.author | Edlund, Håkan | |
| dc.contributor.author | Norgren, Magnus | |
| dc.date.accessioned | 2022-10-10T10:18:13Z | |
| dc.date.available | 2022-10-10T10:18:13Z | |
| dc.date.issued | 2022 | |
| dc.description.abstract | With amphiphilic properties, cellulose molecules are expected to adsorb at the O/W interface and be capable of stabilizing emulsions. The effect of solvent quality on the formation and stability of cellulose-based O/W emulsions was evaluated in different alkaline systems: NaOH, NaOH-urea and tetrabutylammonium hydroxide (TBAH). The optimal solvency conditions for cellulose adsorption at the O/W interface were found for the alkaline solvent with an intermediate polarity (NaOH-urea), which is in line with the favorable conditions for adsorption of an amphiphilic polymer. A very good solvency (in TBAH) and the interfacial activity of the cation lead to lack of stability because of low cellulose adsorption. However, to achieve long-term stability and prevent oil separation in NaOH-urea systems, further reduction in cellulose's solvency was needed, which was achieved by a change in the pH of the emulsions, inducing the regeneration of cellulose at the surface of the oil droplets (in-situ regeneration). | pt_PT |
| dc.description.sponsorship | UID/QUI/00313/2020 | |
| dc.description.version | info:eu-repo/semantics/publishedVersion | pt_PT |
| dc.identifier.doi | 10.1016/j.carbpol.2022.119257 | pt_PT |
| dc.identifier.issn | 0144-8617 | |
| dc.identifier.uri | http://hdl.handle.net/10400.1/18346 | |
| dc.language.iso | eng | pt_PT |
| dc.peerreviewed | yes | pt_PT |
| dc.publisher | Elsevier | pt_PT |
| dc.relation | Mediterranean Institute for Agriculture, Environment and Development | |
| dc.relation | Not Available | |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | pt_PT |
| dc.subject | Regenerated cellulose | pt_PT |
| dc.subject | Amphiphilicity | pt_PT |
| dc.subject | Dissolution | pt_PT |
| dc.subject | NaOH | pt_PT |
| dc.subject | TBAH | pt_PT |
| dc.subject | Urea | pt_PT |
| dc.subject | O/ W emulsions | pt_PT |
| dc.title | On the formation and stability of cellulose-based emulsions in alkaline systems: effect of the solvent quality | pt_PT |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.awardTitle | Mediterranean Institute for Agriculture, Environment and Development | |
| oaire.awardTitle | Not Available | |
| oaire.awardURI | info:eu-repo/grantAgreement/FCT/9471 - RIDTI/PTDC%2FASP-SIL%2F30619%2F2017/PT | |
| oaire.awardURI | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F05183%2F2020/PT | |
| oaire.awardURI | info:eu-repo/grantAgreement/FCT/CEEC IND 2018/CEECIND%2F01014%2F2018%2FCP1540%2FCT0002/PT | |
| oaire.citation.startPage | 119257 | pt_PT |
| oaire.citation.title | Carbohydrate Polymers | pt_PT |
| oaire.citation.volume | 286 | pt_PT |
| oaire.fundingStream | 9471 - RIDTI | |
| oaire.fundingStream | 6817 - DCRRNI ID | |
| oaire.fundingStream | CEEC IND 2018 | |
| person.familyName | Medronho | |
| person.familyName | Romano | |
| person.givenName | Bruno | |
| person.givenName | Anabela | |
| person.identifier.ciencia-id | 6918-9AB3-8D22 | |
| person.identifier.ciencia-id | 8A18-7E9A-3B0E | |
| person.identifier.orcid | 0000-0003-0972-1739 | |
| person.identifier.orcid | 0000-0002-7204-7428 | |
| person.identifier.rid | P-5927-2014 | |
| person.identifier.scopus-author-id | 9940656700 | |
| person.identifier.scopus-author-id | 56249997600 | |
| project.funder.identifier | http://doi.org/10.13039/501100001871 | |
| project.funder.identifier | http://doi.org/10.13039/501100001871 | |
| project.funder.identifier | http://doi.org/10.13039/501100001871 | |
| project.funder.name | Fundação para a Ciência e a Tecnologia | |
| project.funder.name | Fundação para a Ciência e a Tecnologia | |
| project.funder.name | Fundação para a Ciência e a Tecnologia | |
| rcaap.rights | openAccess | pt_PT |
| rcaap.type | article | pt_PT |
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