title: Preparation and characterization of pH-sensitive hydrogel of chitosan/poly(acrylic acid) co-polymer.
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.
authors.affiliation: Department of Chemical Engineering and Technology, School of Environmental and Chemical Engineering, Shanghai University (Jiading Campus), Jiading, Shanghai 201800, China.
authors.forename: Lili
authors.initials: L
authors.lastname: Shi
authors.forename: Liming
authors.initials: L
authors.lastname: Yang
authors.forename: Jie
authors.initials: J
authors.lastname: Chen
authors.forename: Yong
authors.initials: Y
authors.lastname: Pei
authors.forename: Min
authors.initials: M
authors.lastname: Chen
authors.forename: Baojun
authors.initials: B
authors.lastname: Hui
authors.forename: Jian
authors.initials: J
authors.lastname: Li
mesh_terms: 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
chemical_list: D000180:Acrylic Resins; D020100:Hydrogels; D014867:Water; C065246:chitosan-poly(acrylic acid); D048271:Chitosan