Xylan from birch wood was characterized regarding both the supramolecular structure (X‐ray, CP/MAS 13C‐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.
No takes yet. Share an insight, caveat, or question.
Schwikal et al. (2005) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: