Abstract
The reaction of epichlorohydrin with maltodextrins has been studied using novel methods for determining free glycerol and glycerol monoethers. Glycerol is determined by enzymatic analysis and glycerol monoethers by a modified oxidative method involving the HPLC separation and the determination of formaldehyde as the 2,4 dinitrophenylhydrazone derivative. Chloride is determined by a standard gravimetric assay involving silver precipitation. These methods permit the deduction of the overall yield of grafting and the degree of cross-linking in the crude reaction medium with no need for further purification thus allowing the study of the reaction of epichlorohydrin with polysaccharides other than high molecular weight starch or dextrans. Other reaction intermediates such as chloropropanediol and glycidol can also be concluded to be produced, based on the kinetics of the hydrolysis reaction.
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