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  Home > JCE Print > Journal of Chemical Education > Issues > 2002  > January  >
In the Laboratory
Using Latex Elastomer to Illustrate Euler's Chain Relationship
Fred R. Hilgeman and Ana A. Alcaraz
Department of Chemistry, Southwestern University, Georgetown , TX 78626
Cover
January 2002
Vol. 79 No. 1
p. 78
Abstract
Designed for the physical chemistry laboratory, this experiment uses the properties of an elastomer, latex, to illustrate the experimental validity of Euler's chain relationship. Considering the length of an elastomer to be a function of its tension and temperature, one can use this mathematical relationship to show that (dt/dT)l(dl/dt)T(dT/dl)t = -1. This is done by measuring each of the terms in the equation and determining their slopes. Within experimental error, the product of these slopes is -1.
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Instructions for students and notes for instructors are available.
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*  Citation
 Hilgeman, Fred R.; Alcaraz, Ana A. J. Chem. Educ. 2002 79 78.
*  Keywords
 Laboratory Computing / Interfacing; Laboratory Instruction; Physical Chemistry; Polymer Chemistry; Statistics / Data Analysis; Thermodynamics
*  History
 Created:
Last Updated:		 December 3, 2001
March 16, 2005
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