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Precipitation of Hemicelluloses from DMSOWater Mixtures Using Carbon Dioxide as an Antisolvent
Joint Authors
Wendland, Martin
Potthast, Antje
Haimer, Emmerich
Liebner, Falk
Rosenau, Thomas
Source
Issue
Vol. 2008, Issue 2008 (31 Dec. 2008), pp.1-5, 5 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2009-01-05
Country of Publication
Egypt
No. of Pages
5
Main Subjects
Engineering Sciences and Information Technology
Chemistry
Civil Engineering
Abstract EN
Supercritical antisolvent precipitation is a relatively recent technology which can be used for controlled preparation of polymer particles from solutions.
This is done by the addition of an antisolvent to a polymer solution causing supersaturation of the polymer, especially under supercritical conditions.
The particle size of the precipitates can be adjusted mainly by the rate of supersaturation.
Spherical xylan or mannan particles having a narrow particle size distribution were precipitated from hemicellulose solutions in dimethyl-sulfoxide (DMSO) or DMSO/water mixtures by carbon dioxide as an antisolvent.
By depending on the type of hemicellulose, the DMSO/H2O ratio, and the precipitation conditions such as pressure and temperature, the resulting particle size can be adjusted within a wide range from less than 0.1 to more than 5 μm.
Nano- and microstructured native xylans and mannans as obtained can be used in many applications such as encapsulation of active compounds, slow release agents, or chromatographic separation materials.
American Psychological Association (APA)
Haimer, Emmerich& Wendland, Martin& Potthast, Antje& Rosenau, Thomas& Liebner, Falk. 2009. Precipitation of Hemicelluloses from DMSOWater Mixtures Using Carbon Dioxide as an Antisolvent. Journal of Nanomaterials،Vol. 2008, no. 2008, pp.1-5.
https://search.emarefa.net/detail/BIM-501277
Modern Language Association (MLA)
Haimer, Emmerich…[et al.]. Precipitation of Hemicelluloses from DMSOWater Mixtures Using Carbon Dioxide as an Antisolvent. Journal of Nanomaterials No. 2008 (2008), pp.1-5.
https://search.emarefa.net/detail/BIM-501277
American Medical Association (AMA)
Haimer, Emmerich& Wendland, Martin& Potthast, Antje& Rosenau, Thomas& Liebner, Falk. Precipitation of Hemicelluloses from DMSOWater Mixtures Using Carbon Dioxide as an Antisolvent. Journal of Nanomaterials. 2009. Vol. 2008, no. 2008, pp.1-5.
https://search.emarefa.net/detail/BIM-501277
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-501277