X-ray irradiation-induced changes in (PVA–PEG–Ag) polymer nanocomposite films

International Conference and Exhibition on Polymer Chemistry

November 14-16, 2016 Atlanta, USA

M M Abutalib

King Abdulaziz University, Saudi Arabia

Posters & Accepted Abstracts: J Material Sci Eng

Abstract :

The effects of X-ray irradiation on the structural, thermal and optical properties of polyvinyl alcohol�polyethylene glycol� silver (PVA�PEG�Ag) nanocomposites have been investigated. The samples of nanocomposites were prepared by adding Ag nanoparticles with 5 wt.% to the (PVA�PEG) blend. The films of 0.05 mm thickness were prepared by the casting method. These films were irradiated with X-ray doses ranging from 20 to 200 kGy. The resultant effect of X-ray irradiation on the structural properties of PVA�PEG�Ag has been investigated using X-ray diffraction and Fourier transform infrared spectroscopy. Also, thermal property studies were carried out using thermogravimetric analysis. Further, the transmission of the PVA�PEG�Ag samples and any color changes were studied. Fourier transform infrared spectroscopy measurements showed that the crosslinking is the dominant mechanism at the dose range 50�200 kGy. This led to a more compact structure of PVA�PEG�Ag samples, which resulted in an improvement in its thermal stability with an increase in the activation energy of thermal decomposition. Moreover, the color intensity ��E was greatly increased with an increase in the dose, and was accompanied by a significant increase in the yellow color component.

Biography :

Email: mabutalib@kau.edu.sa