Fractionation of Polysaccharide Derivatives and Subsequent Analysis to Differentiate Heterogeneities on Various Hierarchical Levels

Autor:	Roland Adden, Petra Mischnick
Rok vydání:	2008
Předmět:	chemistry.chemical_classification Chromatography Polymers and Plastics Organic Chemistry Random model Fractionation Polymer Condensed Matter Physics Polysaccharide chemistry.chemical_compound chemistry Methyl cellulose Materials Chemistry Molecule Cellulose Solvent extraction
Zdroj:	Macromolecular Symposia. 262:1-7
ISSN:	1521-3900 1022-1360
DOI:	10.1002/masy.200850201
Popis:	A set of methyl celluloses of DS 1.8 has been fractionated by stepwise solvent extraction. All fractions have been investigated with respect to their monomer composition and methyl distribution in the polymer chains. Deviation from the random model and differences between the four samples could be determined with higher sensitivity and more differentiated than for the unfractionated material. Structure complexity of cellulose ethers on different hierarchical levels is outlined and discussed.
Databáze:	OpenAIRE
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