Title: Do deviations from reptation scaling of entangled polymer melts result from single- or many-chain effects?
Authors: Liu, Chen-Yang ×
Keunings, Roland
Bailly, Christian #
Issue Date: Dec-2006
Publisher: American physical soc
Series Title: Physical review letters vol:97 issue:24 pages:-
Abstract: By studying the relaxation of small amounts of short entangled "probe" chains in a high molecular weight matrix, we show that the deviations from reptation scaling of the longest relaxation time are not as much dominated by single-chain effects (usually referred to as contour length fluctuations or CLF) as assumed by current mesoscopic models but also originate to a very significant extent from mutual chain relaxation effects. This result is in fact consistent with literature data on tracer and self-diffusion. Moreover, tube theories also overpredict the influence of CLF on the plateau modulus. Improved theories, simulations, and careful experiments are urgently needed to resolve this important question.
ISSN: 0031-9007
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Department of Materials Engineering - miscellaneous
× corresponding author
# (joint) last author

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