Preparation and characterizations of interpenetrating polymer network hydrogels of poly(ethylene oxide) and poly(methyl methacrylate)

Seon Jeong Kim, Chang Kee Lee, In Young Kim, Kay Hyeok An, Sun I. Kim

Research output: Contribution to journalArticle

4 Scopus citations

Abstract

Interpenetrating polymer network (IPN) hydrogels based on poly(ethylene oxide) and poly(methyl methacrylate) were prepared by radical polymerization using 2,2-dimethyl-2-phenylacetophenone and ethylene glycol dimethacrylate as initiators and crosslinkers, respectively. The IPN hydrogels were analyzed for sorption behavior at 25°C and at a relative humidity of 95% using dynamic vapor sorption. The IPN hydrogels exhibited a relatively high equilibrium water content in the range of 13-68%. The state of water in the swollen IPN hydrogels was investigated using differential scanning calorimetry. The free water in the hydrogels increased as the hydrophilic content increased.

Original languageEnglish
Pages (from-to)258-262
Number of pages5
JournalJournal of Applied Polymer Science
Volume89
Issue number1
DOIs
StatePublished - 2003 Jul 5

Keywords

  • Hydrogels
  • Interpenetrating networks (IPN)
  • Poly(ethylene oxide)
  • Poly(methyl methacrylate)
  • Sorption

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