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Synthesis and characterization of novel cellulose ether sulfates

Synthese und Charakterisierung von neuartigen Celluloseethersulfaten
 
: Rohowsky, Juta; Heise, Katja; Fischer, Steffen; Hettrich, Kay

:

Carbohydrate polymers 142 (2016), pp.56-62
ISSN: 0144-8617
ISSN: 1879-1344
English
Journal Article
Fraunhofer IAP ()
Fraunhofer WKI ()
cellulose ether; homogeneous sulfation; cellulose sulfate derivative; raman spectroscopy; cellulose sulfate

Abstract
The synthesis and characterization of novel cellulose sulfate derivatives was reported. Various cellulose ethers were prepared in a homogeneous reaction with common sulfating agents. The received product possess different properties in dependence on the reaction conditions like sulfating agent, solvent, reaction time and reaction temperature. The cellulose ether sulfates are all soluble in water, they rheological behavior could be determined by viscosity measurements and the determination of the sulfur content by elemental analysis lead to a resulting degree of substitution ascribed to sulfate groups (DSSul) of the product. A wide range of products from DSSul 0.1 to DSSul 2.7 will be obtained. Furthermore the cellulose sulfate ethers could be characterized by Raman spectroscopy.

: http://publica.fraunhofer.de/documents/N-388059.html