Please use this identifier to cite or link to this item: https://hdl.handle.net/10316/109749
DC FieldValueLanguage
dc.contributor.authorKihlman, Martin-
dc.contributor.authorMedronho, Bruno F.-
dc.contributor.authorRomano, Anabela L.-
dc.contributor.authorGermgård, Ulf-
dc.contributor.authorLindman, Björn Olof-
dc.date.accessioned2023-10-25T09:30:52Z-
dc.date.available2023-10-25T09:30:52Z-
dc.date.issued2013-
dc.identifier.issn0103-5053pt
dc.identifier.urihttps://hdl.handle.net/10316/109749-
dc.description.abstractThe distinction between thermodynamic and kinetics in cellulose dissolution is seldom considered in the literature. Therefore, herein an attempt to discuss this topic and illustrate our hypotheses on the basis of simple experiments was made. It is well-known that cellulose can be dissolved in a aqueous sodium hydroxide (NaOH/H2O) solvent at low temperature but it is here shown that such an alkaline solvent can be considerably improved regarding solubility, stability and rheological properties as a whole if different additives (salts and amphiphilic molecules) are used in the dissolution stage. This work probes new aqueous routes to dissolve cellulose, thereby improving the potential to commercially dissolve cellulose in an inexpensive and environmentally friendly manner.pt
dc.description.abstractA distinção entre termodinâmica e cinética de dissolução da celulose raramente tem sido considerada na literatura. Neste trabalho, discutimos este tema e fundamentamos as nossas hipóteses recorrendo a experiências simples. É do conhecimento geral que a celulose pode ser dissolvida no solvente aquoso de hidróxido de sódio (NaOH/H2O) a baixa temperatura. Neste trabalho, demonstramos que este solvente alcalino pode ser consideravelmente melhorado em relação à sua estabilidade, solubilidade e propriedades reológicas se forem usados diferentes aditivos (sais e moléculas anfifílicas) na fase de dissolução. Este trabalho indica novos caminhos relativamente à dissolução da celulose em solventes aquosos, de uma forma mais econômica e ambientalmente amigável, aumentando o seu potencial comercial.pt
dc.language.isoengpt
dc.publisherSociedade Brasileira de Quimicapt
dc.relationFCT, SFRH/BPD/74540/2010pt
dc.relationCelluNova I projectpt
dc.rightsopenAccesspt
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/pt
dc.subjectcellulose dissolutionpt
dc.subjecthydrophobic effectpt
dc.subjectsodium hydroxidept
dc.subjectpretreatment amphiphilespt
dc.titleCellulose Dissolution in an Alkali Based Solvent: Influence of Additives and Pretreatmentspt
dc.typearticle-
degois.publication.firstPage295pt
degois.publication.lastPage303pt
degois.publication.issue2pt
degois.publication.titleJournal of the Brazilian Chemical Societypt
dc.peerreviewedyespt
dc.identifier.doi10.5935/0103-5053.20130038pt
degois.publication.volume24pt
dc.date.embargo2013-01-01*
uc.date.periodoEmbargo0pt
item.grantfulltextopen-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.openairetypearticle-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextCom Texto completo-
crisitem.author.researchunitCQC - Coimbra Chemistry Centre-
crisitem.author.parentresearchunitFaculty of Sciences and Technology-
crisitem.author.orcid0000-0002-7493-9112-
Appears in Collections:FCTUC Química - Artigos em Revistas Internacionais
Show simple item record

Page view(s)

29
checked on May 8, 2024

Download(s)

35
checked on May 8, 2024

Google ScholarTM

Check

Altmetric

Altmetric


This item is licensed under a Creative Commons License Creative Commons