Ionic Liquids pretreatment of cellulose fiber materials for improvement of reactivity and value added applications
2011 (English)In: 16th International Symposium on Wood, Fiber and Pulping Chemistry - Proceedings, ISWFPC , 2011, 503-510 p.Conference paper (Refereed)
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.
Cellulose, Dissolving pulp, Ionic liquids (ILs)
Polymer Technologies Polymer Chemistry
IdentifiersURN: urn:nbn:se:kth:diva-82382ScopusID: 2-s2.0-84862955528OAI: oai:DiVA.org:kth-82382DiVA: diva2:498179
16th International Symposium on Wood, Fiber and Pulping Chemistry, ISWFPC; Tianjin; 8 June 2011 through 10 June 2011
QC 201202202012-02-112012-02-112012-02-20Bibliographically approved