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Reptation Analysis of Interdiffusing Chromophore-Labeled Polymers

Published online by Cambridge University Press:  26 February 2011

W. W. Merrill ,
M. Tirrell  and
S. Prager
W. W. Merrill
Affiliation:
Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN 55455
M. Tirrell
Affiliation:
Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN 55455
S. Prager
Affiliation:
Department of Chemistry, University of Minnesota, Minneapolis, MN 55455
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Abstract

Understanding the dynamics of the microscopic mixing of polymer across an interface is crucial in determining the dependence of the fracture yield stress on healing time, and on the dynamics of polymer blending. Previous theoretical analyses of healing by Prager, Tirrell and Adolf [1,2,3] and Kim and Wool [4] have been helpful in interpreting the results of crack healing experiments. These models have asserted strict reptation dynamics and then postulated simple relationships between microstructure and fracture stress. The underlying microstructure can be probed directly by fluorescence measurements on interdiffusing chromophore-labeled polymers.

Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 79: Symposium F – Scattering, Deformation and Fracture in Polymers , 1986 , 421
Copyright
Copyright © Materials Research Society 1987

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