Authors: Wanjun Liu Amar K Mohanty Per Askeland Lawrence T Drzal Manjusri Misra
Publish Date: 2008/05/06
Volume: 16, Issue: 3, Pages: 177-182
Abstract
Chemical modification of soy protein with monomers such as maleic anhydride glycidyl methacrylate and styrene was accomplished using reactive extrusion technology Thermal and mechanical properties of the modified soy protein plastics were characterized with differential scanning calorimetry DSC a dynamic mechanical analyzer DMA and a United Testing System load frame It was found that the denaturation temperature and the glass transition temperature of soy protein plastic changed In addition the tensile properties of modified soy protein plastic improved Attenuated total reflection Fourier transform infrared ATRFTIR and Xray photoelectron spectroscopy XPS were used to characterize the structure of modified soy proteins A suggestion of the interaction between soy protein and functional group in functional polymers is given Through the insitu interaction between the polymer and soy protein plastic the mechanical properties of the soy protein plastic can be adjusted and controlledThe financial support from USDANRI Grant No 20013550410734 and GREEEN Generating Research and Extension to meet Economic and Environmental Needs 2002 Award No GR02066 is gratefully acknowledged Authors also thank to ADM Decatur IL for supplying soy protein for this research
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