Dynamics of Lightly Sulfonated Polystyrene Ionomers

R. H. Colby; X. Zheng; M. H. Rafailovich; J. Sokolov; D. G. Peiffer; S. A. Schwarz; Y. Strzhemechny; D. Nguyen

doi:10.1103/PhysRevLett.81.3876

Dynamics of Lightly Sulfonated Polystyrene Ionomers

R. H. Colby, X. Zheng, M. H. Rafailovich, J. Sokolov, D. G. Peiffer, S. A. Schwarz, Y. Strzhemechny, and D. Nguyen

Phys. Rev. Lett. 81, 3876 – Published 2 November 1998

Abstract

The tracer diffusion coefficients of both ion-containing polymer chains and their associated counterions were measured in lightly sulfonated ionomers as a function of temperature, ion content, and chain length. The data are shown to be in good agreement with relaxation times derived from viscoelastic measurements at high temperatures. The results are interpreted in terms of a reptation model, modified to account for the additional constraints on individual chain motion imposed by the associating ion pairs.

Received 29 October 1997

DOI:https://doi.org/10.1103/PhysRevLett.81.3876

Authors & Affiliations

R. H. Colby¹, X. Zheng², M. H. Rafailovich², J. Sokolov², D. G. Peiffer³, S. A. Schwarz⁴, Y. Strzhemechny⁴, and D. Nguyen⁵

¹Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802
²Department of Materials Science and Engineering, SUNY, Stony Brook, New York 11794-2275
³Exxon Research and Engineering Company, Annandale, New Jersey 08801
⁴Department of Physics, Queens College, Flushing, New York 11367-1597
⁵Department of Physics, Brookhaven National Laboratory, Upton, New York 11973