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28.01.2016 | Original Paper

Surface tension of concentrated cellulose solutions in 1-ethyl-3-methylimidazolium acetate

verfasst von: Jeremias Schuermann, Tim Huber, Deborah LeCorre, Gérard Mortha, Mathieu Sellier, Benoît Duchemin, Mark P. Staiger

Erschienen in: Cellulose | Ausgabe 2/2016

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Abstract

Four sources of cellulose with different molecular weights were dissolved in the ionic liquid 1-ethyl-3-methylimidazolium acetate at 100 °C over a 10 h period. The solution densities were determined and these results were subsequently utilised to access the influence of dissolved cellulose on surface tension properties of cellulose/ionic liquid solutions. Surface tension measurements revealed increasing molecular weight and concentration reduced surface tension while temperature increases showed the opposite effect. These results are consistent with that of repulsive polymer-wall interactions near the interface in good solvent conditions. The semi-flexible nature of this carbohydrate in solution can help explain deviations of these results when compared to ideal flexible chains.

Vorheriger Artikel Mechanical properties of cellulose nanomaterials studied by contact resonance atomic force microscopy

Nächster Artikel Morphological changes of sterically stabilized nanocrystalline cellulose after periodate oxidation

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Titel: Surface tension of concentrated cellulose solutions in 1-ethyl-3-methylimidazolium acetate
verfasst von: Jeremias Schuermann
Tim Huber
Deborah LeCorre
Gérard Mortha
Mathieu Sellier
Benoît Duchemin
Mark P. Staiger
Publikationsdatum: 28.01.2016
Verlag: Springer Netherlands
Erschienen in: Cellulose / Ausgabe 2/2016
Print ISSN: 0969-0239
Elektronische ISSN: 1572-882X
DOI: https://doi.org/10.1007/s10570-015-0850-5

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