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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Main Authors | , |
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Format | Patent |
Language | German |
Published |
03.12.1981
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Subjects | |
Online Access | Get full text |
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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. |
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Bibliography: | Application Number: DE19813104531 |