Mechanical Model of Globular Transition in Polymers
View/ Open
Author
Tricard, Simon
Shepherd, Robert F.
Stan, Claudiu A.
Snyder, Phillip W.
Cademartiri, Rebecca
Zhu, Danny
Aranson, Igor S.
Published Version
https://doi.org/10.1002/cplu.201402203Metadata
Show full item recordCitation
Tricard, Simon, Robert F. Shepherd, Claudiu A. Stan, Phillip W. Snyder, Rebecca Cademartiri, Danny Zhu, Igor S. Aranson, Eugene I. Shakhnovich, and George M. Whitesides. 2014. “Mechanical Model of Globular Transition in Polymers.” ChemPlusChem 80 (1) (July 30): 37–41. Portico. doi:10.1002/cplu.201402203.Abstract
In complex, multicomponent systems, polymers often undergo phase transitions between distinct conformations. This paper reports a millimeter-scale granular model of coil-to-globule transitions: one “polymer” chain—a cylinders-on-a-string “pearl necklace”—and many spheres, all shaken on a horizontal surface. It is possible to describe the behavior of this granular system by using formalisms generally used in statistical physics of polymers. Two sets of experiments allowed the observation of first- and second-order coil-to-globule transitions. The model shows that the competition between long- and short-range interactions leads to a first-order transition. Well-designed granular system represents another kind of approach to the study of polymer phase transitions and might inspire future designs of polymer-like mesoscale systems.Terms of Use
This article is made available under the terms and conditions applicable to Open Access Policy Articles, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#OAPCitable link to this page
http://nrs.harvard.edu/urn-3:HUL.InstRepos:25045868
Collections
- FAS Scholarly Articles [18292]
Contact administrator regarding this item (to report mistakes or request changes)