Seon Jeong Kim et al 2004 Smart Mater. Struct. 13 1036 doi:10.1088/0964-1726/13/5/008
Seon Jeong Kim, Su Ryon Shin, Sang Min Lee, In Young Kim1 and Sun I Kim
Show affiliationsA semi-interpenetrating polymer network (semi-IPN) hydrogel, composed of chitosan and poly(hydroxyethyl methacrylate) (PHEMA), exhibited electrically sensitive behavior. The swelling behavior of the chitosan/PHEMA semi-IPN hydrogel was studied by immersion of the gel in aqueous NaCl solutions at various concentrations. The stimulus response of the chitosan/PHEMA semi-IPN hydrogel in electric fields was also investigated. When swollen, the semi-IPN was placed between a pair of electrodes, and showed bending behavior upon the application of an electric field. The electro-responsive behavior of the present semi-IPN was also affected by the electrolyte concentration of the external solution, and also showed various degrees of increased bending behavior depending on the electrical stimulus.
61.25.H- Macromolecular and polymers solutions; polymer melts
Issue 5 (October 2004)
Received 28 July 2003, in final form 14 April 2004
Published 23 July 2004
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