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United States Department of Agriculture

Agricultural Research Service

Research Project: IMPROVED UTILIZATION OF PROTEINACEOUS CROP CO-PRODUCTS AND RESIDUES

Location: Plant Polymer Research

Title: Improved zein articles using polyethylenemaleic anhydride

Authors
item SELLING, GORDON
item BYARS, JEFFREY
item UTT, KELLY

Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: March 15, 2014
Publication Date: May 24, 2014
Citation: Selling, G.W., Byars, J.A., Utt, K.D. 2014. Improved zein articles using polyethylenemaleic anhydride. Meeting Abstract.

Technical Abstract: Developing corn protein (zein) articles with improved physical properties and solvent resistance will have a beneficial impact on companies that use corn. The effect of using the crosslinking reagent polyethylenemaleic anhydride (PEMA) on the properties and solubility of zein articles were studied. Solution reactions were carried out in dimethylformamide solution where the concentration of PEMA was varied between 0 and 9%. The rheological properties were studied in order to determine kinetic information concerning the reaction of PEMA with zein. Solution concentration, PEMA concentration and temperature were varied and their impact on gelation time and modulus with time was evaluated. After reaction at room temperature poured films were prepared and the physical and solubility properties of the zein-PEMA formulations were determined. The reaction of PEMA and zein was also carried out in the melt state using batch or reactive extrusion techniques. Compression molded articles were produced and the physical and solubility properties were determined where the amount of PEMA and processing conditions were varied.

Last Modified: 9/10/2014
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