VERFAHREN ZUR HERSTELLUNG NEUER O-TRIMETHYLSILYL-CELLULOSEN

A method of producing O-trimethylsilyl celluloses having a degree of substitution of up to 2.0 includes the steps of swelling wood or cotton cellulose in anhydrous, liquid ammonia, reacting it with trimethylchlorosilane, dissolving the reaction product in a strongly polar aprotic solvent, and, if de...

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Bibliographic Details
Main Authors GREBER,GERHARD,.DR, PASCHINGER,OTTO,.DR
Format Patent
LanguageGerman
Published 03.12.1981
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
DERIVATIVES THEREOF
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
POLYSACCHARIDES
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Summary:A method of producing O-trimethylsilyl celluloses having a degree of substitution of up to 2.0 includes the steps of swelling wood or cotton cellulose in anhydrous, liquid ammonia, reacting it with trimethylchlorosilane, dissolving the reaction product in a strongly polar aprotic solvent, and, if desired, processing it into a dry product by precipitation. Suitable solvents are dimethyl formamide, dimethyl acetamide, N-methyl pyrrolidone and dimethylsulphoxide.
Bibliography:Application Number: DE19813104531