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Cellulose Dissolution in an Alkali Based Solvent: Influence of Additives and Pretreatments
Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Engineering and Chemical Sciences.
Univ Algarve, Fac Sci & Technol, IBB, CGB, P-8005139 Faro, Portugal..ORCID iD: 0000-0003-0972-1739
Univ Algarve, Fac Sci & Technol, IBB, CGB, P-8005139 Faro, Portugal..ORCID iD: 0000-0002-7204-7428
Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Engineering and Chemical Sciences.
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2013 (English)In: Journal of the Brazilian Chemical Society, ISSN 0103-5053, E-ISSN 1678-4790, Vol. 24, no 2, p. 295-303Article in journal (Refereed) Published
Abstract [en]

The 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.

Place, publisher, year, edition, pages
SOC BRASILEIRA QUIMICA, Brazil , 2013. Vol. 24, no 2, p. 295-303
Keyword [en]
cellulose dissolution, hydrophobic effect, sodium hydroxide, pretreatment amphiphiles
National Category
Chemical Engineering Other Chemical Engineering
Research subject
Chemical Engineering
Identifiers
URN: urn:nbn:se:kau:diva-38648ISI: 000317922100017OAI: oai:DiVA.org:kau-38648DiVA, id: diva2:873574
Available from: 2015-11-24 Created: 2015-11-23 Last updated: 2017-12-01Bibliographically approved

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Kihlman, MartinMedronho, Bruno F.Romano, Anabela L.Germgård, UlfLindman, Bjorn

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