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Response to “Comment on ‘Unified explanation of the anomalous dynamic properties of highly asymmetric polymer blends’ ” [J. Chem. Phys.138, 197101 (2013)]
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1. K. L. Ngai and S. Capaccioli, J. Chem. Phys. 138, 054903 (2013).
http://dx.doi.org/10.1063/1.4789585
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2. J. Colmenero, J. Chem. Phys. 138, 197101 (2013).
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8.See supplementary material at http://dx.doi.org/10.1063/1.4804625 for figures. [Supplementary Material]
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/content/aip/journal/jcp/138/19/10.1063/1.4804625
2013-05-15
2014-09-01

Abstract

The Comment of Colmenero asserts no change in (,) of the poly(ethylene oxide) (PEO) chains in blends with poly(methyl methacrylate) on crossing times of about 1–2 ns in data obtained by neutron scattering experiments and simulations. The assertion is opposite to that reported in the original papers where the neutron data and simulations were published. To make this point clear, we cite the data and the very statements made in the original papers concluding that indeed in the time interval from 60 ps to 1–2 ns the dynamics of PEO chain follows approximately the Rouse model, but becomes slower and departs from the Rouse model in the dependencies on time, momentum transfer, and temperature at longer times past = 1–2 ns. It is noteworthy that similar crossover of chain dynamics in entangled homopolymers at the ns time scale was found by neutron scattering.

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Scitation: Response to “Comment on ‘Unified explanation of the anomalous dynamic properties of highly asymmetric polymer blends’ ” [J. Chem. Phys.138, 197101 (2013)]
http://aip.metastore.ingenta.com/content/aip/journal/jcp/138/19/10.1063/1.4804625
10.1063/1.4804625
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