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Vol. 29 No. 7 (2017): Vol 29 Issue 7

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Fabrication and Characterization of Biodegradable Poly(vinyl alcohol)/Chitosan Blends

https://doi.org/10.14233/ajchem.2017.20612
S. Pokhrel
Central Department of Chemistry, Tribhuvan University, Kathmandu, Nepal; Department of Chemistry, Tri-Chandra Multiple Campus, Tribhuvan University, Kathmandu, Nepal
R. Adhikari
Research Centre for Applied Science and Technology (RECAST), Tribhuvan University, Kathmandu, Nepal
P.N. Yadav
Central Department of Chemistry, Tribhuvan University, Kathmandu, Nepal

Corresponding Author(s) : P.N. Yadav

paras_yadav2002@yahoo.com

Asian Journal of Chemistry, Vol. 29 No. 7 (2017): Vol 29 Issue 7

Abstract

Poly(vinyl alcohol)/chitosan (PVA/CS) blends were prepared by solution casting method using glutaraldehyde as a cross linking agent. Fourier transform infrared spectroscopy (FTIR) and microhardness technique were employed to study the intermolecular interactions between constituents of polymer blends and mechanical properties respectively. The degradation properties of PVA/CS films were studied by composting method. FTIR spectra of poly(vinyl alcohol) and PVA/CS blends showed some variations in the absorption bands which reflected interactions between the components of blends. The mechanical stiffness of PVA/CS blends was enhanced by chitosan upto 40 % loading and it was found optimum composition for the maximum enhancement of mechanical properties of the blend. The degradation rate of blends was found increased with the increase in chitosan content.

Keywords

Biodegradation Chitosan blends FTIR Microhardness Poly(vinyl alcohol)
Pokhrel, S., Adhikari, R., & Yadav, P. (2017). Fabrication and Characterization of Biodegradable Poly(vinyl alcohol)/Chitosan Blends. Asian Journal of Chemistry, 29(7), 1602–1606. https://doi.org/10.14233/ajchem.2017.20612
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