Preparation and characterization of pH-sensitive hydrogel of chitosan/poly(acrylic acid) co-polymer.
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.
Shi
Lili
L
Department of Chemical Engineering and Technology, School of Environmental and Chemical Engineering, Shanghai University (Jiading Campus), Jiading, Shanghai 201800, China.
Yang
Liming
L
Chen
Jie
J
Pei
Yong
Y
Chen
Min
M
Hui
Baojun
B
Li
Jian
J
D000042:Absorption; D000180:Acrylic Resins / Q000138:chemical synthesis / Q000737:chemistry; D048271:Chitosan / Q000138:chemical synthesis* / Q000737:chemistry; D005720:Gamma Rays; D020100:Hydrogels / Q000138:chemical synthesis* / Q000737:chemistry; D006863:Hydrogen-Ion Concentration; D009994:Osmolar Concentration; D017550:Spectroscopy, Fourier Transform Infrared; D014867:Water
D000180:Acrylic Resins; D020100:Hydrogels; D014867:Water; C065246:chitosan-poly(acrylic acid); D048271:Chitosan