Cyanoethylated starch containing 4.53 wt.‐% nitrogen was prepared by reacting starch with acrylonitrile in aqueous medium under the catalytic influence of sodium hydroxide. Rheological properties of cyanoethylated starch were examined and compared with those of alkali treated starch before and after storing for varying lengths of time. Cyanoethylated starch offered advantages in terms of higher stability to storage, higher apparent viscosity and improved film‐forming properties as compared with alkali treated starch.
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El‐Thalouth et al. (1980) studied this question.
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