Harding, S. E., Abdelhameed, A. S. and Morris, Gordon (2010) Molecular weight distribution evaluation of polysaccharides and glycoconjugates using analytical ultracentrifugation. Macromolecular Bioscience, 10 (7). pp. 714-720. ISSN 1616-5187Metadata only available from this repository.
We review here the advances that have been made in methodology using the analytical ultracentrifuge for characterising polydisperse polymer systems with a quasi-continuous distribution of molecular weight. These advances include improved ways of defining the weight and z-average molecular weights of a distribution from sedimentation equilibrium experiments and hence the ratio Mz=Mw, off-line calibration of size exclusion chromatography by sedimentation equilibrium and conversion of a sedimentation coefficient distribution into a molecular weight distribution. Although these methods are applicable to other polymeric systems, we focus on polysaccharides, mucins and other glycoconjugates, systems which particularly benefit from the availability of recently available long optical path length cells for the minimisation of complications through thermodynamic non-ideality. Â© 2010 Wiley-VCH Verlag GmbH & Co. KGaA.
|Uncontrolled Keywords:||Biopolymers Chromatography Molar mass distribution Molecular weight distribution Polysaccharides Ultracentrifugation Analytical ultracentrifugation Analytical ultracentrifuge Average molecular weight Continuous distribution Glycoconjugates Long optical path Nonideality Polydisperse polymers Polymeric systems Sedimentation coefficients Sedimentation equilibrium Biomolecules Centrifugation Polydispersity Polymers Weighing Size exclusion chromatography glycoconjugate polysaccharide calibration carbohydrate analysis molecular weight review sedimentation thermodynamics Chromatography, Gel|
|Subjects:||Q Science > QD Chemistry|
|Schools:||School of Applied Sciences|
Language of Original Document: English
|Depositing User:||Gordon Morris|
|Date Deposited:||19 May 2011 11:47|
|Last Modified:||01 Jul 2011 15:02|
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