Synthesis and characteristics of interpenetrating polymer network hydrogels composed of alginate and poly(diallydimethylammonium chloride)

Seon Jeong Kim, Seoung Gil Yoon, Sun I. Kim

Research output: Contribution to journalArticle

31 Scopus citations

Abstract

Temperature- and pH-responsive interpenetrating polymer network (IPN) hydrogels, with sodium alginate (SA) and poly(diallydimethylammonium chloride) (PDADMAC), constructed by a sequential IPN method, were studied. The characterizations of the IPN hydrogels were investigated by FTIR, DSC, and swelling tests under various conditions. The prepared IPN hydrogels exhibited relatively high swelling ratios, in the range of 380-690%, at 25°C. The swelling ratios of SA/PDADMAC IPN hydrogels were pH and temperature dependent. DSC was used for the quantitative determination of the freezing and nonfreezing water contents of the hydrogels. The amount of free water increased with the increasing PDADMAC content of the IPN hydrogels.

Original languageEnglish
Pages (from-to)3705-3709
Number of pages5
JournalJournal of Applied Polymer Science
Volume91
Issue number6
DOIs
StatePublished - 2004 Mar 15

Keywords

  • Alginate
  • Hydrogels
  • Interpenetrating networks (IPN)
  • Poly(diallydimethylammonium chloride)
  • Swelling

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