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Electrochemical behavior of an interpenetrating polymer network hydrogel composed of poly(propylene glycol) and poly(acrylic acid)
Author(s) -
Kim Seon Jeong,
Lee Ki Jung,
Kim Sun I.,
Lee Young Moo,
Chung Tack Dong,
Lee Sang Hoon
Publication year - 2003
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.12327
Subject(s) - swelling , acrylic acid , materials science , interpenetrating polymer network , aqueous solution , polymer , polymer chemistry , self healing hydrogels , polyvinyl alcohol , chemical engineering , electrochemistry , nuclear chemistry , composite material , chemistry , copolymer , electrode , organic chemistry , engineering
An interpenetrating polymer network (IPN) hydrogel based on poly(propylene 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. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 89: 2301–2305, 2003