Abstract
An interpenetrating polymer network (IPN) hydrogel based on polypropylene glycol) and poly(acrylic acid) was prepared by UV irradiation. The swelling behavior of the IPN hydrogel was studied by the immersion of the gel in aqueous NaCl solutions of various concentrations. The swelling ratio decreased with an increase in the NaCl concentration. The electrically sensitive behavior of the IPN hydrogel in electric fields was also investigated. The IPN hydrogel also showed a stepwise bending behavior that depended on the electric stimulus. The bending angle and bending speed of the IPN hydrogel were greatest in 0.6 wt % aqueous NaCl and increased with an increase in the applied voltage.
Original language | English |
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Pages (from-to) | 2301-2305 |
Number of pages | 5 |
Journal | Journal of Applied Polymer Science |
Volume | 89 |
Issue number | 9 |
DOIs | |
Publication status | Published - 2003 Jun 12 |
Keywords
- Electric
- Hydrogels
- Interpenetrating polymer networks (IPN)
ASJC Scopus subject areas
- General Chemistry
- Surfaces, Coatings and Films
- Polymers and Plastics
- Materials Chemistry