Synthesis and Structural Characteristics of Semi-Synthetic Biopolymer Blends Based on Polyvinyl Alcohol, Starch and Chitosan

Authors

  • Amal Gad Elshahawy Physics Department, Faculty of Science, Mansoura University, Mansoura, Egypt
  • S. I. Badr Physics Department, Faculty of Science, Mansoura University, Mansoura, Egypt
  • A. A. Shadi Physics Department, Faculty of Science, Mansoura University, Mansoura, Egypt

DOI:

https://doi.org/10.24297/jap.v14i2.7477

Keywords:

PVA/Starch, chitosan, FT-IR, SEM

Abstract

Structural and optical studies in combination with surface morphology investigations were accomplished for blend sample (70/30)wt% PVA/Starch in addition to other samples of the same composition containing added pre-calculated chitosan contents via ordinary casting route. All synthesized samples were tested using various experimental techniques including Fourier transform infrared FT-IR, UV-visible spectroscopic measurements and scanning electron microscopic (SEM). Variations in FT-IR, UV/vis. band positions and intensities were used as an evidence for the interaction between constituent partner polymeric matrices. The X-ray diffraction (XRD) experimental data reveled that introduction of chitosan into the polymeric matrices results in a decreasing of percent crystallinity through material. SEM micrographs for samples containing chitosan different concentration revealed small granules and bright spots that attributed to starch. Adding up to 80% more chitosan caused the cryo-fractured surface to become rougher and more brittle.

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Published

2018-07-30

How to Cite

Elshahawy, A. G., Badr, S. I., & Shadi, A. A. (2018). Synthesis and Structural Characteristics of Semi-Synthetic Biopolymer Blends Based on Polyvinyl Alcohol, Starch and Chitosan. JOURNAL OF ADVANCES IN PHYSICS, 14(2), 5554–5563. https://doi.org/10.24297/jap.v14i2.7477

Issue

Vol. 14 No. 2

Section

Articles

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