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Nanoscale Pattern Formation in Polyelectrolyte Gels

Published online by Cambridge University Press:  31 January 2011

Prateek K. Jha ,
Francisco J. Solis ,
Juan J. de Pablo  and
Monica Olvera de la Cruz
Prateek K. Jha
Affiliation:
[email protected], Northwestern University, Chemical and Biological Engineering, Evanston, Illinois, United States
Francisco J. Solis
Affiliation:
[email protected], Arizona State University, Division of Mathematical and Natural Sciences, Glendale, Arizona, United States
Juan J. de Pablo
Affiliation:
[email protected], University of Wisconsin Madison, Chemical and Biological Engineering, Madison, Wisconsin, United States
Monica Olvera de la Cruz
Affiliation:
[email protected], Northwestern University, Materials Science and Engineering, Evanston, Illinois, United States
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Abstract

Polyelectrolyte (PE) gels exhibit complex phase behavior that includes the existence of nanostructures in poor-solvent conditions. The formation of these inhomogeneous structures is made possible by the competition between the short-range hydrophobic, elastic, and entropic interactions and the long-range electrostatic forces. We develop a theoretical framework that describes the effect of monomer and charge inhomogeneities in PE gels. Numerical calculations performed on a salt-free PE gel with one-dimensional heterogeneities demonstrate the presence of nanophases for a finite range of physical parameters.

Keywords

nanostructurepolymersimulation
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1234: Symposium QQ – Responsive Gels and Biopolymer Assemblies , 2009 , 1234-QQ02-07
Copyright
Copyright © Materials Research Society 2010

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