Homogeneous Sulfation of Xylan from different Sources

Daus, Stephan; Petzold-Welcke, Katrin; Koetteritzsch, Manuela; Baumgärtel, Anja; Schubert, Ulrich S.; Heinze, Thomas

Abstract:

Xylan sulfates have been prepared under homogeneous reaction conditions in DMF/LiCl applying SO3/pyridine and SO3/DMF. The degree of substitution (DSSulfate) of the products obtained was determined by elemental analysis. DSSulfate reached values of up to 1.90 applying a molar ratio of 3 mol sulfating agent per anhydroxylose unit. The structure of the xylans and of the xylan sulfates was studied in detail by oneand two-dimensional NMR spectroscopy and MALDI-TOF mass spectrometry.

Year:

2011

Type of Publication:

Article

Journal:

Macromolecular Materials and Engineering

Volume:

296

Pages:

551 - 561