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Open Access Influence of a glycerin additive on the structure and water vapor permeance of chitosan membranes

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In this study, the role of glycerin as an additive in the preparation of chitosan membranes was investigated with respect to their structure and water vapor permeance. The modified chitosan membranes were systemati- cally characterized using scanning electron microscopy, thermogravimetric analysis, Fourier Transform infrared spectroscopy, and X-ray diffraction; the observations showed that the addition and removal of glycerin did not obviously influence the surface morphology or thermal stability of the chitosan membranes. Furthermore, water vapor sorption experiments revealed that the equilibrium water content in the modified chitosan membranes was increased slightly as compared to that in the pure chitosan membrane. The addition and removal of glyc- erin impacted the water vapor permeance of the chitosan membranes. When the glycerin content exceeded 80 wt%, the water vapor permeance of the composite membranes was higher than that of the pure chitosan membrane.

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Keywords: CHITOSAN MEMBRANES; GLYCERIN; PERMEANCE; WATER VAPOR

Document Type: Research Article

Publication date: December 1, 2014

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  • Materials Express is a peer-reviewed multidisciplinary journal reporting emerging researches on materials science, engineering, technology and biology. Cutting-edge researches on the synthesis, characterization, properties, and applications of a very wide range of materials are covered for broad readership; from physical sciences to life sciences. In particular, the journal aims to report advanced materials with interesting electronic, magnetic, optical, mechanical and catalytic properties for industrial applications.
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