Abstract

CERON M., ALCY RENE. THE HYDROPHILICITY PROBLEM OF STARCH BASED PLASTIC MATERIALS. Rev.Bio.Agro [online]. 2013, vol.11, n.spe, pp.41-48. ISSN 1692-3561.

Starch is a renewable and cheap natural polysaccharide from that is easily to make biodegradable plastic products. However, its products have low mechanical properties and tend to change its properties in the presence of water. For reduce the problems caused for water in the plastic product derived from starch, originate from de high hydrophilicity of this polymer, are diverse strategies such as the chemical modification of starch, the blend of starch with minor hydrophilic polymers and the superficial modification of the final products. In the present review is presented some examples of investigations related with the mentioned strategies, focused the attention in superficial modification that allow decrease the hydrophilicity of plastic products based on starch without affect the internal characterizes of material significantly.

Keywords : Biodegradable Polymers; Superficial Modification; Water Absorption.

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