The purpose of this work is to propose a methodology for characterizing the dynamic mechanical properties of thin fibers of hydrogel. Analytical solutions of mo tion equations of charged gels, based on a continuum model, whose internal consistency is demonstrated, are compared with experimental results in two paradigms: free-swelling and stress-relaxation. In addition we present a new method to estimate the gel shear and bulk moduli and its hydraulic permeability.
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References
1.
Biot, M.A.1956. "Theory of Propagation of Elastic Waves in a Fluid Saturated Porous Solid: I. Low-Frequency Range", J. Acoustical Soc Am. , 28. 168-178.
2.
Burchard, W. and S.B. Ross Murphy .1980. Physical Networks: Polymers and Gels. London, UK: Elsevier Applied Science.
3.
Chandler, R.N. and D.L. Johnson1981. "The Equivalence of Quasistatic Flow in Fluid-Saturated Porous Media Biot's Slow Wave in the Limit of Zero Frequency", J. Appl. Phys. , 52( 5):3391-3395.
4.
Chiarelli, P. and D. De Rossi. 1988. "Determination of Mechanical Parameters Related to the Kinetics of Swelling in an Electrically Activated Contractile Gel", Progr. Colloid Polymer Sci. , 78.4-8.
5.
De Rossi, D., K. Kagjiwara , Y. Osada and A. Yamauchi, eds. 1991. Polymers Gels: Fundamental and Biomedical Application. New York, NY: Plenum Press.
6.
Eisenberg, S.R.1983. "Non Equilibrium Electromechanical Interactions in Cartilage: Swelling and Electrokinetics", Sc.D. thesis, Dep. Elec. Eng. Comp. Science, MIT, pp. 76-225.
7.
Eisenberg, S.R. and A.J. Grodzinsky .1987. "The Kinetics of Chemically Induced Non Equilibrium Swelling of Articular Cartilage and Corneal Stroma ", J. of Biomechanical Engineering, 109:79-89.
Itoh, Y., T. Matsumura, S. Umemoto, N. Okui and T. Sakai1987. "Contraction/Elongation Mechanism of Acrylonitrile Gel Fibers", Polymer Preprints-Japan (English Edition), 36(5- 10):E184-E186 .
10.
Johnson, D.L.1982. "Elastodynamics of Gels", J. Chem. Phys. , 77 1531-1539
11.
Katchalsky, A. and P.F. Curran. 1974. Non Equilibrium Thermodynamics in Biophysics . Cambridge, MA: Harvard University Press.
12.
Katchalsky, A., S. Lifson, I. Michaeli and M. Zwick1960. Size and Shape Changes of Contractile Polymers . New York, NYPergamon Press.
13.
Li, Y. and T.J. Tanaka. 1990. "Kinetics of Swelling and Shrinking of Gels", Chem. Phys. , 92:1365-1371.
14.
Mow, V.C. and W.M. Lai. 1980. "Recent Developments in Synovial Joint Biomechanics", SIAM Rev., 22 :275-317.
15.
Osada, Y.1987 "Conversion of Chemical into Mechanical Energy by Synthetic Polymers (Chemomechanical System", Adv. Polym. Sci. , 87.1-46
16.
Peters, A. and S.J. Candau. 1988. "Kinetics of Swelling of Spherical and Cylindrical Gels", Macromolecules, 21:2278-2282.
17.
Rice, J.R. and M.P. Cleary. 1976. "Some Basic Stress-Diffusion Solutions for Fluid Saturated Elastic Porous Media with Compressible Constituents", Rev. Geophs. Space Phys. , 14227-241
18.
Tanaka, T. and D.J. Fillmore. 1979. "Ktnetics of Swelling of Gels", J. Chem. Phys. , 70:1214-1218.
19.
Tanaka, T., L.O. Hocker and G.B. Benedek. 1973. "Spectrum of Light Scattered from a Viscoelastic Gel", J. Chem. Phys. , 59:5151-5159.
20.
Umemoto, S., N. Okui and T. Sakai.1991. "Contraction Behavior of Poly(acrylonitrile) Gel Fibers ", in Polymers Gels: Fundamental and Biomedical Application , D. De Rossi et al., eds., New York, NY: Plenum Press, pp. 257-270
