Electrical Activation of Poly (Vinyl Alcohol) / Chitosan Hydrogels
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Abstract
Chitosan was synthesized from squid pen and was characterized using FT-IR. The average molecular weight of the synthesized chitosan was estimated by viscometry. Poly(vinyl alcohol)(PVA)/ chitosan hydrogels, at various compositions, were prepared by semi-interpenetrating polymer network (semi-IPN) technique. 2,2-dimethoxy-2-phenylacetophenone (DMPAP) and acryloyl chloride were used as an initiator and crosslinker, respectively. Equilibrium water content (%EWC) of the polymer hydrogels was in the range of 27-45%. The electrical response of the polymer hydrogels, immersed in various concentrations of NaCl solutions, was also investigated. With the application of a 15-volt-electric field, the polymer hydrogels bent toward cathode and turned to the opposite direction when the electrical stimulus was removed. The electrical sensitive behavior of the hydrogels at various compositions was also discussed.
Keywords: polymer hydrogel, interpenetrating polymer networks, electrical sensitive behavior.
Corresponding author: E-mail: kaewpiro@buu.ac.th
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References
[2] Jeong, B., and Gutowska, A. 2002 Lesson from nature: stimuli-responsive polymers and their biomedical applications. Trends in Biolotechnology 20, 305-311.
[3] Shin, M.S., Kim, S.J., Kim, I.Y., Kim, N.G., Song, C.G., and Kim, S.I. 2002 Swollen behavior of crosslinked network hydrogels based on poly(vinylalcohol) and poly(dimethylsiloxane). Journal of Applied Polymer Science 85, 957-964.
[4] Kim, S.J., Lee, K.J., Kim, S.I, Lee, K.B., and Park, Y.D. 2003 Sorption characterization of poly(vinyl alcohol)/chitosan interpenetrating polymer network hydrogels. Journal of Applied Polymer Science 90, 86-91
[5] Kim, S.J., Park, S.J., Kim, I.Y., Shin, M.S., and Kim, S.I. 2002 Electric stimuli responses to poly(vinyl alcohol)/chitosan interpenetrating polymer network hydrogels in NaCl solutions. Journal of Applied Polymer Science 86, 2285-2289.
[6] Kim, S.S., Lee, Y.M., and Cho, C.S. 1995 Synthesis and properties of semi-interpenetrating polymer networks composed of β-chitin and poly(ethylene glycol) macromere. Polymer 36(23), 4497-4501.
[7] Bourke, S.L., Al-Khalili M., Briggs T., Michniak B.B., Kohn J., and Poole-Warren L.A. 2003 A photo-crooslinked poly(vinyl alcohol) hydrogel growth factor release vehicle for wound healing applications. The American Association of Pharmaceutical Scientists Journal: Pharmaceutical Science 5(4), 1-11.
[8] Shiga, T., and Kurauchi, T. 1990 Deformation of polyelectrolyte gels under the influence of electric field. Journal of Applied Polymer Science 39, 2305-2320.
[9] Doi, M., Matsumoto, M., and Hirose, Y. 1992 Deformation of ionic polymer gels by electric fields. Macromolecues 25, 5504-5511.
[10] Yuk, S.H., and Lee, H.B. 1993 Electric-current-sensitive polymers. Reversible bending of rod-shaped acrylamide gel in NaCl solution. Journal of Polymer Science: Part B: Polymer Physics. 31, 487-489.
[11] Tamagawa, H., and Taya, M. 2000 A theoretical prediction of the ions distribution in an amphoteric polymer gel. Materials Science and Engineering A285, 314-325.
[12] Sun S, Mak A. F.T. 2001 The dynamical response of a hydrogel fiber to electrochemical stimulation. Journal Polymer Science: Part B: Polymer Physics: 39, 236-246.
[13] Wallmersperger T, Kroplin B, Gulch RW. 2001 Modelling and analysis of chemistry and electromechanics. In: Bar-Cohen Y., Ed. Electroactive Polymer (EPA) Actuators as Artificial Muscles-Reality, Potential, and Challenges. Bellingham, SPIE Press.
[14] Kim, S.J., Park, S.J., and Kim, S.J. 2003 Swelling behavior of interpenetrating polymer network hydrogels composed of poly(vinyl alcohol) and chitosan. Reactive & Functional Polymer 55, 53-59.
[15] Wallmersperger, T., Kroplin, B., and Gulch, R.W. 2004 Coupled chemo-mechanical formulation for ionic polymer gels-numerical and experimental investigations. Mechanics of Materials 36, 411-420.
[16] Dillard, C.R., and Goldberg, D.E. 1978 Chemistry. New York, Macmillan.
[17] Koryta, J., Dvorak, J., and Bohackova, V. 1970 Electrochemistry. London, Methuen.
[18] Matsuyama, H., Teramoto, M, and Urano, H. 1997 Analysis of solute diffusion in poly(vinyl alcohol) hydrogel membrane. Journal of Membrane Science 126, 151-160.