Preparation and characterization of pH-sensitive hydrogel of chitosan/poly(acrylic acid) co-polymer |
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| Authors: | Shi Lili Yang Liming Chen Jie Pei Yong Chen Min Hui Baojun Li Jian |
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| Affiliation: | Department of Chemical Engineering and Technology, School of Environmental and Chemical Engineering, Shanghai University (Jiading Campus), Jiading, Shanghai 201800, China. |
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| Abstract: | ![]()
A pH-sensitive co-polymer hydrogel of chitosan/poly(acrylic acid) (CS/PAAc) was prepared by irradiating the aqueous solution mixture of chitosan and acrylic acid with 60Co gamma-ray irradiation. The effect of the composition of chitosan and AAc on the properties of the hydrogel, such as swelling ratio and pH-sensitivity, were determined. Fourier Transform Infrared (FT-IR) spectrometry was applied in the attenuated total reflectance (ATR) mode for analyzing the structure change of the hydrogels after the treatment in different pH buffer solutions. |
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