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2001
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February
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Research: Science and Education
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Thermodynamics of Rubber Elasticity
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J. Pellicer, J. A. Manzanares, J. Zúñiga, and P. Utrillas
Department of Thermodynamics, Faculty of Physics, University of Valencia, E-46100 Burjassot, Spain
J. Fernández
Department of Applied Physics, Faculty of Physics, University of Santiago de Compostela, E-15706, Santiago de Compostela, Spain
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February 2001
Vol. 78 No. 2
p. 263
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| Abstract |
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A thermodynamic study of an isotropic rubber band under uniaxial stress is presented on the basis of its equation of state. The behavior of the rubber band is compared with both that of an ideal elastomer and that of an ideal gas, considering the generalized Joule's law as the ideality criterion. First, the thermal expansion of rubber at constant stress and the change in the stress with temperature at constant length are described. Thermoelastic inversion is then considered, and the experimental observations are easily rationalized. Finally, the temperature changes observed in the adiabatic stretching of a rubber band are evaluated from the decrease of entropy with length.
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| More Information |
 Citation |
Pellicer, J.; Manzanares, J. A.; Zúñiga, J., Utrillas, P., Fernández, J. J. Chem. Educ. 2001 78 263.
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Keywords |
Materials Science; Physical Chemistry; Polymer Chemistry; Thermodynamics
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History |
Created:
Last Updated: |
August 31, 2005
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| Home > JCE Print > Journal of Chemical Education > Issues >
2001
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February
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263
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