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Bromoacetylation of polysaccharides

M. Hassmannová and Ľ. Kuniak

Institute of Chemistry, Slovak Academy of Sciences, 809 33 Bratislava

 

Abstract:  Preparation of bromoacetyl and acetyl-bromoacetyl derivatives of cellulose and starch is described. The derivatives were prepared by treatment of the suitably activated starting materials (powdered cellulose, and cellulose or starch cross-linked with epichlorohydrin) with bromoacetyl bromide in dioxan or acetic acid. Depending upon the reaction conditions the bromoacetyl and mixed derivatives showed a degree of substitution in the range of DSbromoacetyl 0.04—0.64 and DSoverall 0.32—1.0, respectively. The prepared derivatives are white, powdered materials suitable for chemical binding of amino acids, proteins, enzymes and the like.

Full paper in Portable Document Format: 301a114.pdf

 

Chemical Papers 30 (1) 114–123 (1976)

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