Please use this identifier to cite or link to this item: https://doi.org/10.15480/882.2934
DC FieldValueLanguage
dc.contributor.authorDogenski, Mirelle-
dc.contributor.authorGurikov, Pavel-
dc.contributor.authorBaudron, Victor-
dc.contributor.authorOliveira, J. Valdimir de-
dc.contributor.authorSmirnova, Irina-
dc.contributor.authorFerreira, Sandra R. S.-
dc.date.accessioned2020-09-28T11:47:14Z-
dc.date.available2020-09-28T11:47:14Z-
dc.date.issued2020-09-19-
dc.identifierdoi: 10.3390/gels6030032-
dc.identifier.citationGels 6, Special Issue "Aerogels 2020" (3): 32 (2020)de_DE
dc.identifier.issn2310-2861de_DE
dc.identifier.urihttp://hdl.handle.net/11420/7410-
dc.description.abstractIn this work, the ability of several solvents to induce gel formation from amylomaize starch solubilized in dimethyl sulfoxide (DMSO) was investigated. The formed gels were subjected to solvent exchange using ethanol and dried with supercritical carbon dioxide (sc-CO<sub>2</sub>) to obtain the aerogels. The influence of starch concentration (3&ndash;15 wt%) and solvent content (20&ndash;80 wt%) on gel formation was also studied. It was demonstrated that the gelation of starch in binary mixtures of solvents can be rationalized by Hansen Solubility Parameters (HSP) revealing a crucial hole of hydrogen bonding for the gel&rsquo;s strength, which is in agreement with rheological measurements. Only the addition of water or propylene glycol to starch/DMSO solutions resulted in strong gels at a minimum starch and solvent content of 7.5 wt% and 50 wt%, respectively. The resulting aerogels showed comparably high specific surface areas (78&ndash;144 m<sup>2</sup> g<sup>&minus;1</sup>) and low envelope densities (0.097&ndash;0.203 g cm<sup>&minus;3</sup>). The results of this work indicate that the HSP parameters could be used as a tool to guide the rational selection of water-free gelation in starch/DMSO systems. In addition, it opens up an attractive opportunity to perform starch gelation in those solvents that are miscible with sc-CO<sub>2</sub>, avoiding the time-consuming step of solvent exchange.-
dc.description.abstractIn this work, the ability of several solvents to induce gel formation from amylomaize starch solubilized in dimethyl sulfoxide (DMSO) was investigated. The formed gels were subjected to solvent exchange using ethanol and dried with supercritical carbon dioxide (sc-CO<sub>2</sub>) to obtain the aerogels. The influence of starch concentration (3–15 wt%) and solvent content (20–80 wt%) on gel formation was also studied. It was demonstrated that the gelation of starch in binary mixtures of solvents can be rationalized by Hansen Solubility Parameters (HSP) revealing a crucial hole of hydrogen bonding for the gel’s strength, which is in agreement with rheological measurements. Only the addition of water or propylene glycol to starch/DMSO solutions resulted in strong gels at a minimum starch and solvent content of 7.5 wt% and 50 wt%, respectively. The resulting aerogels showed comparably high specific surface areas (78–144 m<sup>2</sup> g<sup>−1</sup>) and low envelope densities (0.097–0.203 g cm<sup>−3</sup>). The results of this work indicate that the HSP parameters could be used as a tool to guide the rational selection of water-free gelation in starch/DMSO systems. In addition, it opens up an attractive opportunity to perform starch gelation in those solvents that are miscible with sc-CO<sub>2</sub>, avoiding the time-consuming step of solvent exchange.en
dc.language.isoende_DE
dc.publisherMDPIde_DE
dc.relation.ispartofGelsde_DE
dc.rightsCC BY 4.0de_DE
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/de_DE
dc.subjectstarch-based aerogelsde_DE
dc.subjectdimethyl sulfoxidede_DE
dc.subjectsolvent-induced galationde_DE
dc.subjectsolubility parametersde_DE
dc.subject.ddc600: Technikde_DE
dc.titleStarch-Based Aerogels Obtained via Solvent-Induced Gelationde_DE
dc.typeArticlede_DE
dc.date.updated2020-09-25T13:26:31Z-
dc.identifier.doi10.15480/882.2934-
dc.type.diniarticle-
dcterms.DCMITypeText-
tuhh.identifier.urnurn:nbn:de:gbv:830-882.0106768-
tuhh.oai.showtruede_DE
tuhh.abstract.englishIn this work, the ability of several solvents to induce gel formation from amylomaize starch solubilized in dimethyl sulfoxide (DMSO) was investigated. The formed gels were subjected to solvent exchange using ethanol and dried with supercritical carbon dioxide (sc-CO<sub>2</sub>) to obtain the aerogels. The influence of starch concentration (3–15 wt%) and solvent content (20–80 wt%) on gel formation was also studied. It was demonstrated that the gelation of starch in binary mixtures of solvents can be rationalized by Hansen Solubility Parameters (HSP) revealing a crucial hole of hydrogen bonding for the gel’s strength, which is in agreement with rheological measurements. Only the addition of water or propylene glycol to starch/DMSO solutions resulted in strong gels at a minimum starch and solvent content of 7.5 wt% and 50 wt%, respectively. The resulting aerogels showed comparably high specific surface areas (78–144 m<sup>2</sup> g<sup>−1</sup>) and low envelope densities (0.097–0.203 g cm<sup>−3</sup>). The results of this work indicate that the HSP parameters could be used as a tool to guide the rational selection of water-free gelation in starch/DMSO systems. In addition, it opens up an attractive opportunity to perform starch gelation in those solvents that are miscible with sc-CO<sub>2</sub>, avoiding the time-consuming step of solvent exchange.de_DE
tuhh.publisher.doidoi: 10.3390/gels6030032-
tuhh.publication.instituteThermische Verfahrenstechnik V-8de_DE
tuhh.publication.instituteEntwicklung und Modellierung neuartiger nanoporöser Materialien V-EXK2de_DE
tuhh.identifier.doi10.15480/882.2934-
tuhh.type.opus(wissenschaftlicher) Artikel-
dc.type.driverarticle-
dc.type.casraiJournal Article-
tuhh.container.issue3de_DE
tuhh.container.volume6de_DE
dc.relation.projectStofftransportprozesse bei der Herstellung von biopolymerbasierten Aerogelen: in situ Charakterisierung und Modellierungde_DE
dc.rights.nationallicensefalsede_DE
dc.identifier.scopus2-s2.0-85092504114de_DE
tuhh.container.articlenumber32de_DE
local.status.inpressfalsede_DE
datacite.resourceTypeJournal Article-
datacite.resourceTypeGeneralText-
item.mappedtypeArticle-
item.openairetypeArticle-
item.languageiso639-1en-
item.grantfulltextopen-
item.cerifentitytypePublications-
item.creatorOrcidDogenski, Mirelle-
item.creatorOrcidGurikov, Pavel-
item.creatorOrcidBaudron, Victor-
item.creatorOrcidOliveira, J. Valdimir de-
item.creatorOrcidSmirnova, Irina-
item.creatorOrcidFerreira, Sandra R. S.-
item.creatorGNDDogenski, Mirelle-
item.creatorGNDGurikov, Pavel-
item.creatorGNDBaudron, Victor-
item.creatorGNDOliveira, J. Valdimir de-
item.creatorGNDSmirnova, Irina-
item.creatorGNDFerreira, Sandra R. S.-
item.fulltextWith Fulltext-
item.openairecristypehttp://purl.org/coar/resource_type/c_6501-
crisitem.project.funderDeutsche Forschungsgemeinschaft (DFG)-
crisitem.project.funderid501100001659-
crisitem.project.funderrorid018mejw64-
crisitem.project.grantnoGU 1842/3-1-
crisitem.author.deptEntwicklung und Modellierung Neuartiger Nanoporöser Materialien V-EXK2-
crisitem.author.deptThermische Verfahrenstechnik V-8-
crisitem.author.deptThermische Verfahrenstechnik V-8-
crisitem.author.orcid0000-0002-9003-1059-
crisitem.author.orcid0000-0003-0598-243X-
crisitem.author.orcid0000-0003-4503-4039-
crisitem.author.orcid0000-0003-3393-0995-
crisitem.author.parentorgStudiendekanat Verfahrenstechnik (V)-
crisitem.author.parentorgStudiendekanat Verfahrenstechnik (V)-
crisitem.author.parentorgStudiendekanat Verfahrenstechnik (V)-
Appears in Collections:Publications with fulltext
Files in This Item:
File Description SizeFormat
gels-06-00032-v2.pdf3,91 MBAdobe PDFView/Open
Thumbnail
Show simple item record

Page view(s)

216
Last Week
2
Last month
4
checked on Feb 3, 2023

Download(s)

157
checked on Feb 3, 2023

SCOPUSTM   
Citations

3
Last Week
1
Last month
0
checked on Jun 30, 2022

Google ScholarTM

Check

Note about this record

Cite this record

Export

This item is licensed under a Creative Commons License Creative Commons