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Bending behavior of hydrogels composed of poly(methacrylic acid) and alginate by electrical stimulus
Author(s) -
Kim Seon Jeong,
Yoon Seoung Gil,
Lee Yong Hee,
Kim Sun I
Publication year - 2004
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.1560
Subject(s) - methacrylic acid , self healing hydrogels , swelling , materials science , aqueous solution , poly(methacrylic acid) , polymer , electric field , chemical engineering , polyelectrolyte , composite material , polymer chemistry , copolymer , chemistry , organic chemistry , physics , quantum mechanics , engineering
Abstract Interpenetrating polymer networks (IPNs) prepared from poly(methacrylic acid) (PMAAc) and sodium alginate (SA) exhibited electrical sensitive behavior. The swelling behavior of the PMAAc/SA IPN hydrogel was studied by immersion of the gel into aqueous HCl solutions at various concentrations and into various pH buffer solutions, and their responses to electric fields were also investigated. When swollen IPN hydrogel was placed between a pair of electrodes it exhibited bending behavior on application of an electric field, and showed stepwise bending behavior depending on the magnitude of the electrical stimulus. Copyright © 2004 Society of Chemical Industry