Article

Preparation and Characterization of pH-sensitive Hydrogel Film of Chitosan/Poly(acrylic acid) Copolymer

  1. Liming Yang1,
  2. Lili Shi1,
  3. Jie Chen1,
  4. Yong Pei1,
  5. Feng Zhu1,
  6. Yiben Xia2

Article first published online: 2 JUN 2005

DOI: 10.1002/masy.200550708

Issue

Macromolecular Symposia

Macromolecular Symposia

Special Issue: Polymers in Novel Applications

Volume 225, Issue 1, pages 95–102, May 2005

Additional Information

How to Cite

Yang, L., Shi, L., Chen, J., Pei, Y., Zhu, F. and Xia, Y. (2005), Preparation and Characterization of pH-sensitive Hydrogel Film of Chitosan/Poly(acrylic acid) Copolymer. Macromol. Symp., 225: 95–102. doi: 10.1002/masy.200550708

Author Information

  1. 1

    Department of Chemical Engineering and Technology, Shanghai University (Jiading Campus), Shanghai 201800, China

  2. 2

    School of Material Science and Engineering, Shanghai University, Shanghai 200072, China

Publication History

  1. Issue published online: 2 JUN 2005
  2. Article first published online: 2 JUN 2005

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Keywords:

  • chitosan;
  • hydrogel;
  • pH-sensitivity;
  • poly(acrylic acid)

Abstract

A hydrogel film of chitosan/poly(acrylic acid) (CS/PAAc) copolymer with the property of pH sensitivity, was prepared by irradiating the chitosan film, which was then swelled by aqueous AAc solutions of different concentrations. The effects of the feed ratio of chitosan and AAc on the properties of the hydrogels, such as swelling ratio and pH-sensitivity, were determined. Fourier transform infrared (FT-IR) spectroscopy was applied in the attenuated total reflectance (ATR) mode for analyzing the structure change of the hydrogels after the treatment in buffer solutions of different pHs.

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