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@ARTICLE{Zamponi:7863,
      author       = {Zamponi, M. and Pyckhout-Hintzen, W. and Wischnewski, A.
                      and Monkenbusch, M. and Willner, L. and Kali, G. and
                      Richter, D.},
      title        = {{M}olecular observation of branch point motion in star
                      polymer melts},
      journal      = {Macromolecules},
      volume       = {43},
      number       = {1},
      issn         = {0024-9297},
      address      = {Washington, DC},
      publisher    = {Soc.},
      reportid     = {PreJuSER-7863},
      pages        = {518 - 524},
      year         = {2010},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {Using neutron spin echo (NSE) spectroscopy and a labeling
                      scheme unique to neutron scattering the motion of it labeled
                      branch point of a three-arm polyethylene star has been
                      observed oil a molecular level. The measured dynamic
                      structure factor shows a clear transition to a Plateau,
                      Signifying the stronger confinement of the star center in
                      comparison to a corresponding center labeled linear chain. A
                      shortening of one star arm to about only one entanglement
                      length leads to the same topological confinement as for the
                      symmetric star within the accessible time range of NSE. This
                      reflects it stronger effect of such it small branch than
                      expected and is consistent with rheological measurements on
                      the same system.},
      keywords     = {J (WoSType)},
      cin          = {IFF-5 / IFF-4 / Jülich Centre for Neutron Science JCNS
                      (JCNS) ; JCNS},
      ddc          = {540},
      cid          = {I:(DE-Juel1)VDB785 / I:(DE-Juel1)VDB784 /
                      I:(DE-Juel1)JCNS-20121112},
      pnm          = {BioSoft: Makromolekulare Systeme und biologische
                      Informationsverarbeitung / Großgeräte für die Forschung
                      mit Photonen, Neutronen und Ionen (PNI)},
      pid          = {G:(DE-Juel1)FUEK505 / G:(DE-Juel1)FUEK415},
      shelfmark    = {Polymer Science},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000273268700069},
      doi          = {10.1021/ma9017185},
      url          = {https://juser.fz-juelich.de/record/7863},
}