Electrical sensitivity behavior of a hydrogel composed of polymethacrylic acid/poly(vinyl alcohol)

Seon Jeong Kim, Seoung Gil Yoon, Sang Min Lee, Sang Hoon Lee, Sun I. Kim

Research output: Contribution to journalArticlepeer-review

49 Citations (Scopus)


An interpenetrating polymer network (IPN) composed of polymethacrylic acid (PMAA) and poly(vinyl alcohol) (PVA) was prepared and exhibited electrical sensitivity behavior. The swelling behavior of the PMAA/PVA IPN hydrogel was studied by immersion of the gel in aqueous NaCl solutions at various concentrations and pH values. The stimuli response of the PMAA/PVA IPN hydrogel in electric fields was also investigated. When swollen IPN hydrogel was placed between a pair of electrodes, the PMAA/PVA IPN hydrogel exhibited bending behaviour upon the application of an electric field. The PMAA/PVA IPN hydrogel also showed stepwise bending behavior depending on the electric stimulus. Also, for biomedical applications, the bending behavior of PMAA/PVA IPN hydrogel in Hank's solution at pH 7.4 was studied.

Original languageEnglish
Pages (from-to)3613-3617
Number of pages5
JournalJournal of Applied Polymer Science
Issue number6
Publication statusPublished - 2004 Mar 15


  • Bending behavior
  • Interpenetrating polymer network
  • Poly(vinyl alcohol)
  • Polyelectrolytes
  • Polymethacrylic acid

ASJC Scopus subject areas

  • General Chemistry
  • Surfaces, Coatings and Films
  • Polymers and Plastics
  • Materials Chemistry


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