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Dissolution capacit...
Dissolution capacity of novel cellulose solvents based on triethyloctylammonium chloride
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- Achtel, Christian (författare)
- Friedrich Schiller University of Jena, Germany
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- Jedvert, Kerstin (författare)
- RISE,IVF,Friedrich Schiller University of Jena, Germany
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- Kosan, Birgit (författare)
- TITK Thuringian Institute of Textile and Plastics Research, Germany
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- Seoud, Omar. A.El (författare)
- University of São Paulo, Brazil
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- Heinze, Thomas (författare)
- Friedrich Schiller University of Jena, Germany
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(creator_code:org_t)
- 2017-09-28
- 2017
- Engelska.
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Ingår i: Macromolecular Chemistry and Physics. - : Wiley. - 1022-1352 .- 1521-3935. ; 218:21
- Relaterad länk:
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https://ri.diva-port... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Dissolution of cellulose from various sources (microcrystalline cellulose and different dissolving grade pulp fibers) is investigated in solvent systems based on triethyl(n-octyl)ammonium chloride (N2228Cl). Clear cellulose solutions are obtained with N2228Cl in a variety of solvents, e.g., dimethyl sulfoxide, N,N-dimethylacetamide, and acetone. It is possible to prepare clear cellulose solutions from pulp fibers with concentrations up to 15 wt%. However, it is found that the cellulose is degraded, especially when neat (i.e., molten) N2228Cl is used as a solvent. The present work includes comprehensive rheological characterization of the cellulose solutions, both with shear and extensional rheology. In most cases, the viscosity values are low (complex viscosities below 100 Pa s for 5–10 wt% dissolved cellulose), and the solutions show more Newtonian than viscoelastic behavior.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Pappers-, massa- och fiberteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Paper, Pulp and Fiber Technology (hsv//eng)
Nyckelord
- cellulose dissolution
- degradation
- quaternary ammonium salts
- rheology
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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