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Fractionation of Polysaccharide Derivatives and Subsequent Analysis to Differentiate Heterogeneities on Various Hierarchical Levels
Author(s) -
Mischnick Petra,
Adden Roland
Publication year - 2008
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200850201
Subject(s) - fractionation , monomer , cellulose , polymer , extraction (chemistry) , polysaccharide , chemistry , solvent , chromatography , materials science , organic chemistry
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.