Synthesis and characteristics of semi-interpenetrating polymer network hydrogels based on chitosan and poly(hydroxy ethyl methacrylate)

Seon Jeong Kim, Su Ryon Shin, Dong Ik Shin, In Young Kim, Sun I. Kim

Research output: Contribution to journalArticle

26 Scopus citations

Abstract

Semi-interpenetrating polymer networks (semi-IPNs), composed of chitosan and poly(hydroxy ethyl methacrylate) hydrogels, were prepared and the effects of various pH, temperatures, and an electric-field on the swollen hydrogels were investigated. The swelling kinetics increased rapidly, reaching equilibrium within 60 min. Semi-IPN hydrogels exhibited relatively high swelling ratios, 150-350%. The swelling ratio increased when the pH of the buffer was below pH 7 as a result of the dissociation of ionic bonds. Semi-IPN hydrogels showed electroresponsiveness by shrinking when an electric field was applied.

Original languageEnglish
Pages (from-to)86-92
Number of pages7
JournalJournal of Applied Polymer Science
Volume96
Issue number1
DOIs
StatePublished - 2005 Apr 5

Keywords

  • Chitosan
  • Poly(hydroxyethyl methacrylate)
  • Swelling behavior
  • pH sensitive

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