IONICALLY MODIFIED CELLULOSE MATERIAL

Ionically modified cellulose material in which the ionic moiety is linked to the cellulose moiety via the carbonyl group of the bridge member -CO-NH-CH2-O- is suitable for being employed as the stationary phase in processes for separating mixtures of ionically charged components by chromatography, i...

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Bibliographische Detailangaben
Hauptverfasser:	WALTER VOSER, JURG MERZ
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOSITIONS BASED THEREON DERIVATIVES THEREOF INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PHYSICS POLYSACCHARIDES SEPARATION TESTING THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	Ionically modified cellulose material in which the ionic moiety is linked to the cellulose moiety via the carbonyl group of the bridge member -CO-NH-CH2-O- is suitable for being employed as the stationary phase in processes for separating mixtures of ionically charged components by chromatography, if the ionically modified cellulose material is obtainable from microcrystalline wood cellulose in the form of powder, as the starting material, the cellulose having a degree of polymerization of 490 to 550, and the cellulose powder consisting of particles having a specific BET surface area of 0.8 to 1.1 m2/g and a degree of swelling in water at 20 DEG C. of 4 to 6 ml/g.