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A review describes the preparation of various starch derivatives [ester, ether or urethane (carbamate) ones], graft copolymers, oxidized or cationic starch by reactive extrusion. Authors focused on the basic process parameters (temperature profile, rotational speed, L/D ratio). The advantages and limitations of reactive extrusion method in comparison with conventional processes of starch modification were presented. The properties of products obtained were characterized.
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Wilpiszewska et al. (2008) studied this question.
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