Surface modification of crude Chitosan films under argon plasma treatment

Authors

Sidney M. Palardonio ⋅ PH National Institute of Physics, University of the Philippines Diliman
Precy Mae C. Calaque ⋅ PH National Institute of Physics, University of the Philippines Diliman
Magdaleno R. Vasquez ⋅ PH College of Engineering, University of the Philippines Diliman
Henry J. Ramos ⋅ PH National Institute of Physics, University of the Philippines Diliman
Marco Nemesio E. Montaño ⋅ PH Marine Science Institute, University of the Philippines Diliman

Abstract

This study aims to identify the effects of argon plasma on hydrophilicity, morphology, and functionalization of chitosan films. Chitosan was extracted from shrimp shells and was prepared into a film by dip-coating method. The films were exposed to argon plasma under vacuum for 1-, 3- , and 5-minute intervals. Measured contact angles showed a general decrease from 68° to about 50° implying an improvement in the hydrophilicity. Scanning electron micrographs revealed a network of highly branched fibers in circular patterns and that plasma-treated chitosan films have greater surface density. Attenuated Total Reflectance Fourier Transform Infrared Spectroscopy (ATR-FTIR) suggests the formation of ether bonds but hydrophilicity is greatly induced by physical means such as surface roughening.

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Issue

2014: Proceedings of the 32nd Samahang Pisika ng Pilipinas Physics Congress

Article ID

SPP2014-2B-06

Section

Plasma Physics

Published

2014-10-17

How to Cite

[1]

SM Palardonio, PMC Calaque, MR Vasquez, HJ Ramos, and MNE Montaño, Surface modification of crude Chitosan films under argon plasma treatment, Proceedings of the Samahang Pisika ng Pilipinas 32, SPP2014-2B-06 (2014). URL: https://proceedings.spp-online.org/article/view/1829.