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Cationic Xylan Derivatives with High Degree of Functionalization
Author(s) -
Schwikal Katrin,
Heinze Thomas,
Ebringerová Anna,
Petzold Katrin
Publication year - 2005
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.200551406
Subject(s) - cationic polymerization , xylan , chemistry , polymer chemistry , molar ratio , organic chemistry , polysaccharide , materials science , nuclear chemistry , catalysis
Xylan from birch wood was characterized regarding both the supramolecular structure (X‐ray, CP/MAS 13 C‐NMR) and the sugar composition. The reaction of the birch wood xylan with 2,3‐epoxypropyltrimethylammonium chloride in 1,2‐dimethoxyethane as slurry medium yields water‐soluble, cationic 2‐hydroxypropyltrimethylammonium xylan derivatives with high degree of substitution (DS). The DS values up to 1.6 can be controlled by adjusting the molar ratio in a one step synthesis. The structure of the cationic xylan derivatives was confirmed by means of DEPT(135) NMR spectroscopy. Film forming properties of cationic xylan derivatives were investigated with SEM measurements.