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Ionic Liquids pretreatment of cellulose fiber materials for improvement of reactivity and value added applications
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology, Wood Chemistry and Pulp Technology.ORCID iD: 0000-0002-7055-1057
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology, Wood Chemistry and Pulp Technology.
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology, Wood Chemistry and Pulp Technology.
2011 (English)In: 16th International Symposium on Wood, Fiber and Pulping Chemistry - Proceedings, ISWFPC , 2011, 503-510 p.Conference paper, Published paper (Refereed)
Abstract [en]

Cellulose is one of the most abundant biological and renewable materials in the world. The application of cellulose is widely distributed among various industries such as fiber, paper, pharmaceutical, membrane, polymer and paint. However, the utilization of cellulose or cellulosic materials has not been developed entirely because of its poor solubility in common organic solvents. Ionic liquids (ILs) are relatively new family of solvents for dissolution of cellulose. They are organic salts containing cations and anions with low melting temperature, which make them suitable for the solubilization of cellulose. Moreover, ILs are non-volatile, non-toxic, non-flammable and thermally and chemically stable. Cellulose dissolved in ILs can be regenerated with anti-solvents as water, ethanol and acetone. In this study, the pretreatment of both hardwood and softwood dissolving pulps with two ILs ([C4mim+]CH3COO- and [C4mim+]Cl-) were performed. Furthermore, the impact of treating cellulose with ILs was also evaluated by using different analytical techniques, such as size exclusion chromatography (SEC), thermal gravimetric analysis (TGA) and scanning electron microscopy (SEM).

Place, publisher, year, edition, pages
2011. 503-510 p.
Keyword [en]
Cellulose, Dissolving pulp, Ionic liquids (ILs)
National Category
Polymer Technologies Polymer Chemistry
Identifiers
URN: urn:nbn:se:kth:diva-82382Scopus ID: 2-s2.0-84862955528OAI: oai:DiVA.org:kth-82382DiVA: diva2:498179
Conference
16th International Symposium on Wood, Fiber and Pulping Chemistry, ISWFPC; Tianjin; 8 June 2011 through 10 June 2011
Note
QC 20120220Available from: 2012-02-11 Created: 2012-02-11 Last updated: 2012-02-20Bibliographically approved

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Li, Dongfang

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