Effect Of Gamma Irradiation and Tannic Acid On The Chemical And Physical Properties Of Poly(Vinyl Alcohol)/Wheat Gluten (Pva/Wg) Polymer Blends

Khalil, Salwa; Shoaib, Nashwa; Abdel-Monem, Yasser Kamal; Senna, Magdy

doi:10.21608/ejchem.2020.22565.2342

Effect Of Gamma Irradiation and Tannic Acid On The Chemical And Physical Properties Of Poly(Vinyl Alcohol)/Wheat Gluten (Pva/Wg) Polymer Blends

Document Type : Original Article

Authors

¹ Radiation Chemistry Department, National Center for Radiation Research and Technology, Nasr City, Cairo, Egypt

² Chemistry Department, Faculty of Science, Menoufia University

³ Chemistry department, Faculty of science, Menoufia university

10.21608/ejchem.2020.22565.2342

Abstract

Films of poly(vinyl alcohol)/wheat gluten (PVA/WG) polymer blends at different compositions were prepared by solution casting and then exposed to a constant dose of gamma irradiation. In addition, the PVA/WG polymer blends were modified by adding a constant ratio (4%) of tannic acid (TA) to the casting solution. The PVA/WG polymer blends before and after gamma irradiation as well as those modified by tannic acid were characterized by Fourier transform infrared (FTIR) spectroscopic analysis, thermogravimetric analysis (TGA), scanning electron microscopy (SEM) and measuring the tensile mechanical properties. The antimicrobial activity of PVA/WG polymer blends was also investigated. FTIR spectroscopic analysis indicated that a hydrogen bond was formed between TA and PVA also irradiation improves the adhesion between PVA and WG this conclusion also supported by scanning electron microscopy (SEM) and measuring the tensile mechanical properties. The antimicrobial properties indicated that irradiated sample was better than unirradiated samples.

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