Abstract
Porous bead celluloses have wide ranging applications as separation media and carrier systems. Physicochemical characterization of these materials and related suspensions is essential for quality control and technical applications. This includes their surface properties, porosities and mechanical properties.
The paper describes the application of multisample analytical centrifugation for porous bead celluloses.
Bead celluloses of different sizes and differing in the preparation process were chosen and analysed in respect to porosity and particle interactions.
The consolidation, packing behaviour and elasticity of the bead celluloses was analysed in an alternating centrifugal field.
Differences in packing density obtained under controlled conditions were used to calculate the porosities of the samples. Multisample analytical centrifugation provides a powerful alternative for determination of the cumulative porosity, which was elaborated in this study. This approach is generally applicable for other particulate material if strong flocculation between particles can be avoided.
Further, different preparation processes lead to an alteration of the surface properties of the bead celluloses. Bead celluloses revealed a markedly different behaviour than cellulose powder manufactured from native cellulose.
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References
Wolf B, Horsch W (1991) Pharmazie 46:392
Fanter C (2004) Das Papier 4:68
Sobisch T, Lerche D (2003) Interaction between tailored particle interfaces characterized by analytical centrifugation. Chemistry Preprint Archive, Volume 2003, Issue 7, p 198–218, http://www.sciencedirect.com/preprintarchive
EP AZ 96109778.9 (1999)
Lerche D (2002) Dispersion stability and particle characterization by sedimentation kinetics in a centrifugal field. J Dispersion Sci Techn 23:699
Sobisch T, Lerche D, Detloff T, Beiser M, Erk A (2005) Tracing the centrifugal separation of fine-particle slurries. Effect of centrifugal acceleration, particle interaction and concentration. Filtration, in press
Gilány T, Horváth-Szabó G, Wolfram E (1984) J Coll Interface Sci 98:72
Tombácz E, Deér I, Dékány I (1993) Colloids Surfaces A 71:269
Tombácz E, Horváth B, Abráhám I (1993) Colloids Surfaces A 71:277
Sobisch T, Lerche D (2004) Characterization of colloidal dispersions by analytical centrifugation. In: Ulrich Teipel (ed) Produktgestaltung in der Partikeltechnologie, Band 2. Fraunhofer IRB Verlag, Stuttgart, p 433–448
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Sobisch, T., Lerche, D., Fischer, S., Fanter, C. (2006). Characterization of Porous Bead Celluloses by Analytical Centrifugation. In: Richtering, W. (eds) Smart Colloidal Materials. Progress in Colloid and Polymer Science, vol 133. Springer, Berlin, Heidelberg . https://doi.org/10.1007/3-540-32702-9_26
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DOI: https://doi.org/10.1007/3-540-32702-9_26
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-32701-1
Online ISBN: 978-3-540-32702-8
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