![Nieto image isotropic Nieto image isotropic](/units/dpoly/gallery/images/nieto-Iso.jpg)
![Nieto image stretched Nieto image stretched](/units/dpoly/gallery/images/nieto-str.jpg)
(Left) Thermograph taken on an un-stretched (Isotropic) lightly cross-linked polybutadiene sample. (Right) Thermograph of the same polymer after being stretched to a stretch ratio of 4.
Authors/Affiliations: David Nieto Simavilla and David C. Venerus, Illinois Institute of Technology.