A process for the preparation of amino alkyl groups hold strength, polysaccharides and polysaccharide derivatives

摘要

The invention relates to a method for producing amino alkoxy groups hold strength, polysaccharides and polysaccharide derivatives, in whicha) a polysaccharide or polysaccharide derivative in a mixture of a water-miscible aprotic solvent and water and dispersedb) the polysaccharide or polysaccharide derivative with an inorganic base and alkalizedc) during the alkalization the amount of water in the range between 1 and 55 mol of water per anhydroglucose unit of the polysaccharide or polysaccharide derivative, and setsd) then a amination with an etherification reagent in the case of, if appropriate, at an elevated temperature and thene) and optionally neutralizedf) the reaction product is filtered off, washed and then, if necessary, dried and ground.A further subject matter of the invention are thus produced with a total degree of substitution of amino group-containing polysaccharide derivatives.