Bending Characteristics of Electrical Responsive Poly(vinyl alcohol)/Poly(acrylic acid) Semi-Interpenetrating Polymer Network Hydrogel under DC Electric Field

Wei Wei Cui; Li Zhu Liu; Xing Song Zhu

doi:10.4028/www.scientific.net/AMR.79-82.1595

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 79-82Bending Characteristics of Electrical Responsive...

Bending Characteristics of Electrical Responsive Poly(vinyl alcohol)/Poly(acrylic acid) Semi-Interpenetrating Polymer Network Hydrogel under DC Electric Field

Abstract:

Semi-Interpenetrating networks (SIPN) hydrogel composed of poly (acrylic acid) (PAA) and poly (vinyl alcohol) (PVA) was prepared by free radical solution polymerization. The SIPN was characterized by Fourier transform infrared spectroscopy (FTIR). The electric stimuli responsive characteristics were investigated. The hydrogel bent toward the anode initially, altered the bending direction for two times and bent toward the anode ultimately when it was placed in a 0.1 M NaCl aqueous solution under non-contact DC field. For interpreting the special deformation the osmotic pressure curves according to Shiga’ osmotic pressure model were simulated and the pH gradient theory was applied to explain the final direction.

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Periodical:

Advanced Materials Research (Volumes 79-82)

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1595-1598

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.79-82.1595

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Online since:

August 2009

Authors:

Wei Wei Cui, Li Zhu Liu, Xing Song Zhu

Keywords:

Bending Direction, Electric Stimulus, Hydrogel, Ion Concentration, PVA/PAA, SIPN

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