Synthesis and properties of polypyrrole/chitosan composite hydrogels

Yubo Chen, Hao Feng, Liang Li, Songmin Shang, Marcus Chun-Wah Yuen

Research output: Journal article publicationJournal articleAcademic researchpeer-review

14 Citations (Scopus)


Conducting polymer hydrogels consisting of polypyrrole (PPy) and chitosan (CS) are prepared by static polymerization of pyrrole using methyl orange (MO) as the dopant and Fe2(SO4)3as the oxidant in the CS aqueous solution. PPy/CS composite hydrogels not only have good electrical conductivities, but also exhibit excellent swelling/deswelling behaviors due to the participation of one-dimensional conducting PPy blocks in the hydrogel network. The effects of the amount of the oxidant and ionic strength on the physical properties of PPy/CS composite hydrogels are studied in detail. The results show that PPy/CS composite hydrogels have improved water absorbencies in saline solutions compared with the conventional polyelectrolyte hydrogel.
Original languageEnglish
Pages (from-to)1225-1229
Number of pages5
JournalJournal of Macromolecular Science, Part A: Pure and Applied Chemistry
Issue number12
Publication statusPublished - 1 Jan 2013


  • chitosan
  • composites
  • hydrogels
  • polypyrroles
  • static synthesis

ASJC Scopus subject areas

  • Ceramics and Composites
  • Chemistry(all)
  • Polymers and Plastics
  • Materials Chemistry


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