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001     28406
005     20240619091941.0
017 _ _ |a This version is available at the following Publisher URL: http://prl.aps.org
024 7 _ |a 10.1103/PhysRevLett.90.058302
|2 DOI
024 7 _ |a WOS:000180918300062
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024 7 _ |a 2128/1280
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037 _ _ |a PreJuSER-28406
041 _ _ |a eng
082 _ _ |a 550
084 _ _ |2 WoS
|a Physics, Multidisciplinary
100 1 _ |a Wischnewski, A.
|b 0
|u FZJ
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245 _ _ |a Direct observation of the transition from free to constrained single-segment motion in entangled polymer melts
260 _ _ |a College Park, Md.
|b APS
|c 2003
300 _ _ |a 058302
336 7 _ |a Journal Article
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336 7 _ |a Journal Article
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336 7 _ |a ARTICLE
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336 7 _ |a JOURNAL_ARTICLE
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336 7 _ |a article
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440 _ 0 |a Physical Review Letters
|x 0031-9007
|0 4925
|v 90
500 _ _ |a Record converted from VDB: 12.11.2012
520 _ _ |a We report a direct determination of the time dependent mean-squared segment displacement of a polymer chain in the melt covering the transition from free to constraint Rouse relaxation along the virtual tube of the reptation model. This has been achieved by a neutron spin-echo (NSE) measurement of the segmental self-correlation function as conveyed by the spin-incoherent scattering from two fully protonated polymer melts, polyethylene and polyethylene propylene. Within the scenario of de Gennes reptation model a transition of the time dependence of segmental mean-squared displacements from proportional tot(1/2) to proportional tot(1/4) is expected and clearly corroborated by the incoherent NSE results.
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588 _ _ |a Dataset connected to Web of Science
650 _ 7 |a J
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700 1 _ |a Monkenbusch, M.
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700 1 _ |a Willner, L.
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700 1 _ |a Richter, D.
|b 3
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700 1 _ |a Kali, G.
|b 4
|u FZJ
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773 _ _ |a 10.1103/PhysRevLett.90.058302
|g Vol. 90, p. 058302
|p 058302
|q 90<058302
|0 PERI:(DE-600)1472655-5
|t Physical review letters
|v 90
|y 2003
|x 0031-9007
856 7 _ |u http://dx.doi.org/10.1103/PhysRevLett.90.058302
|u http://hdl.handle.net/2128/1280
856 4 _ |u https://juser.fz-juelich.de/record/28406/files/21964.pdf
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