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Solvent screening for the fractionation of industrial kraft lignin
KTH, School of Chemical Science and Engineering (CHE), Centres, Wallenberg Wood Science Center. KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology.
KTH, School of Chemical Science and Engineering (CHE), Centres, Wallenberg Wood Science Center. KTH, School of Biotechnology (BIO), Glycoscience.ORCID iD: 0000-0003-3572-7798
KTH, School of Chemical Science and Engineering (CHE), Centres, Wallenberg Wood Science Center. KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology.ORCID iD: 0000-0002-8614-6291
2016 (English)In: Holzforschung, ISSN 0018-3830, E-ISSN 1437-434X, Vol. 70, no 1, 11-20 p.Article in journal (Refereed) Published
Resource type
Text
Abstract [en]

The polydispersity of commercially available kraft lignins (KLs) is one of the factors limiting their applications in polymer-based materials. A prerequisite is thus to develop lignin fractionation strategies compatible with industrial requirements and restrictions. For this purpose, a solvent-based lignin fractionation technique has been addressed. The partial solubility of KL in common industrial solvents compliant with the requirements of sustainable chemistry was studied, and the results were discussed in relation to Hansen solubility parameters. Based on this screening, a solvent sequence is proposed, which is able to separate well-defined KL fractions with low polydispersity.

Place, publisher, year, edition, pages
Walter de Gruyter, 2016. Vol. 70, no 1, 11-20 p.
Keyword [en]
fractionation, Hansen solubility parameters, kraft lignin, solubility, solvent
National Category
Materials Chemistry
Identifiers
URN: urn:nbn:se:kth:diva-181370DOI: 10.1515/hf-2014-0346ISI: 000367822500002Scopus ID: 2-s2.0-84954305664OAI: oai:DiVA.org:kth-181370DiVA: diva2:901246
Funder
Knut and Alice Wallenberg Foundation
Note

QC 20160207

Available from: 2016-02-07 Created: 2016-02-01 Last updated: 2016-11-29Bibliographically approved

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