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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Improving the compatibility of Zein/Poly(vinyl alcohol) Blends by gamma irradiation and graft copolymerization of acrylic acid
Journal of Agricultural and Food Chemistry, Volume 58, No. 7, Year 2010
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Description
The effect of gamma irradiation and graft copolymerization with different ratios of acrylic acid monomer (AAc) on improving the compatibility of polymeric blends based on zein, as natural protein, and different ratios of poly(vinyl alcohol) (PVA) up to 50% were studied. The structure property of the polymeric blends was characterized by Fourier transform infrared spectroscopy (FTIR), mechanical testing, scanning electron microscopy (SEM), differential scanning calorimetry (DSC) and X-ray diffraction (XRD). The FTIR analysis indicated that grafted AAc into zein/PVA matrix was stabilized by hydrogen bonding. The stress?strain curves showed that pure zein films were brittle, whereas pure PVA and zein/PVA blends films were tough materials either before or after gamma irradiation. The SEM micrographs indicated the formation of multilayers during the blending of zein and PVA, and these layers turned to dispersion in matrix after gamma irradiation and grafting with AAc, suggesting an effectiveness of gamma irradiation on improving compatibility. © 2010 American Chemical Society.
Authors & Co-Authors
Senna, Magdy Mohamed H.
Egypt, Cairo
National Center for Radiation Research and Technology
Salmiéri, Stéphane
Canada, Laval
Centre Armand-frappier Santé Biotechnologie
El-Naggar, Abdel M.
Egypt, Cairo
National Center for Radiation Research and Technology
Sáfrány, Ágnes
Austria, Vienna
Osterreichische Institut Fur Internationale Politik
Lacroix, Monique M.
Canada, Laval
Centre Armand-frappier Santé Biotechnologie
Statistics
Citations: 49
Authors: 5
Affiliations: 3
Identifiers
Doi:
10.1021/jf904088y
ISSN:
00218561
e-ISSN:
15205118
Research Areas
Substance Abuse