Application of mild autohydrolysis to facilitate the dissolution of wood chips in direct-dissolution solvents

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en Deb, Somdatta Labafzadeh, Sara R. Liimatainen, Unna Parviainen, Arno Hauru, Lauri K J Azhar, Shoaib Lawoko, Martin Kulomaa, Tuomas Kakko, Tia Fiskari, Juha Borrega Sabate, Marc Sixta, Herbert Kilpeläinen, Ilkka King, Alistair W T 2016-10-12T12:30:34Z 2016
dc.identifier.citation Deb , S , Labafzadeh , S R , Liimatainen , U , Parviainen , A , Hauru , L K J , Azhar , S , Lawoko , M , Kulomaa , T , Kakko , T , Fiskari , J , Borrega Sabate , M , Sixta , H , Kilpeläinen , I & King , A W T 2016 , ' Application of mild autohydrolysis to facilitate the dissolution of wood chips in direct-dissolution solvents ' GREEN CHEMISTRY , vol 18 , no. 11 , pp. 3286-3294 . DOI: 10.1039/c6gc00183a en
dc.identifier.issn 1463-9262
dc.identifier.other PURE UUID: 1c0b8b38-20fc-44e7-9ebc-2c2b5c581291
dc.identifier.other PURE ITEMURL:
dc.identifier.other PURE LINK:
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dc.description.abstract Wood is not fully soluble in current non-derivatising direct-dissolution solvents, contrary to the many reports in the literature quoting wood 'dissolution' in ionic liquids. Herein, we demonstrate that the application of autohydrolysis, as a green and economical wood pre-treatment method, allows for a massive increase in solubility compared to untreated wood. This is demonstrated by the application of two derivitising methods (phosphitylation and acetylation), followed by NMR analysis, in the cellulose-dissolving ionic liquids 1-allyl-3-methylimidazolium chloride ([amim]Cl) and 1,5-diazabicyclo[4.3.0]non-5-enium acetate ([DBNH][OAc]). In addition, the non-derivitising tetrabutylphosphonium acetate ([P4444][OAc]) : DMSO-d6 electrolyte also allowed for dissolution of the autohydrolysed wood samples. By combination of different particle sizes and P-factors (autohydrolysis intensity), it has been clearly demonstrated that the solubility of even wood chips can be drastically increased by application of autohydrolysis. The physiochemical factors affecting wood solubility after autohydrolysis are also discussed. en
dc.format.extent 9
dc.format.extent 3286-3294
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation.ispartofseries GREEN CHEMISTRY en
dc.relation.ispartofseries Volume 18, issue 11 en
dc.rights openAccess en
dc.subject.other Environmental Chemistry en
dc.subject.other Pollution en
dc.subject.other 215 Chemical engineering en
dc.title Application of mild autohydrolysis to facilitate the dissolution of wood chips in direct-dissolution solvents en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department University of Helsinki
dc.contributor.department Department of Forest Products Technology
dc.contributor.department KTH Royal Institute of Technology
dc.contributor.department Department of Bioproducts and Biosystems en
dc.subject.keyword Environmental Chemistry
dc.subject.keyword Pollution
dc.subject.keyword 215 Chemical engineering
dc.identifier.urn URN:NBN:fi:aalto-201610124959
dc.identifier.doi 10.1039/c6gc00183a

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