Imidazolium based ionic liquids as solvents for cellulose chemistry

T. Erdmenger, J. Vitz, U.S. Schubert

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

Abstract

Cellulose is a linear polysaccharide and the most abundant form of terrestrial biomass. Cellulose is also a biodegradable polymer and the starting material for a variety of products. These products are used for a large no. of industrial applications, for example fibers, or tissues. Polysaccharides are also used in medical areas. One of the major drawbacks of cellulose concerning its industrial application is its insoly. in common solvents. With the aim of developing new reaction processes, ionic liqs. became advantageous solvents for the dissoln. and the further homogeneous processing of cellulose in recent years. Despite significant efforts made in the last years, only a few ionic liqs. are known for their capability of dissolving cellulose. Therefore we proposed to extend the range of suitable ionic liqs. From our studies some first results were obtained, for example an odd/even effect was found for different alkyl side chain lengths of the chlorides. In addn., we found other ionic liqs. than the actually used ones which are better suitable for the dissoln. of cellulose. Under microwave irradn. almost no color change and therefore a reduced degrdn. of cellulose could be obsd. These visual results were supported by our DP measurements from dissolved and pptd. cellulose according to the described method from Heinze et. al. In addn., these ILs melt at a low temp. which makes the handling easier. [on SciFinder (R)]
Original languageEnglish
Title of host publicationAbstracts of Papers, 235th ACS National Meeting, New Orleans, LA, United States
Place of PublicationWashington, D. C
PublisherAmerican Chemical Society
PagesCELL-209
Publication statusPublished - 2008
Event235th ACS National Meeting - New Orleans, United States
Duration: 6 Apr 200810 Apr 2008

Conference

Conference235th ACS National Meeting
CountryUnited States
CityNew Orleans
Period6/04/0810/04/08

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