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@ARTICLE{Goossen:256351,
      author       = {Goossen, Sebastian and Krutyeva, Margarita and Sharp,
                      Melissa and Feoktystov, Artem and Allgaier, J. and
                      Pyckhout-Hintzen, Wim and Wischnewski, Andreas and Richter,
                      Dieter},
      title        = {{S}ensing {P}olymer {C}hain {D}ynamics through {R}ing
                      {T}opology: {A} {N}eutron {S}pin {E}cho {S}tudy},
      journal      = {Physical review letters},
      volume       = {115},
      number       = {14},
      issn         = {1079-7114},
      address      = {College Park, Md.},
      publisher    = {APS},
      reportid     = {FZJ-2015-06310},
      pages        = {148302},
      year         = {2015},
      abstract     = {Using neutron spin echo spectroscopy, we show that the
                      segmental dynamics of polymer rings immersed in linear
                      chains is completely controlled by the host. This transforms
                      rings into ideal probes for studying the entanglement
                      dynamics of the embedding matrix. As a consequence of the
                      unique ring topology, in long chain matrices the
                      entanglement spacing is directly revealed, unaffected by
                      local reptation of the host molecules beyond this distance.
                      In shorter entangled matrices, where in the time frame of
                      the experiment secondary effects such as contour length
                      fluctuations or constraint release could play a role, the
                      ring motion reveals that the contour length fluctuation is
                      weaker than assumed in state-of-the-art rheology and that
                      the constraint release is negligible. We expect that rings,
                      as topological probes, will also grant direct access to
                      molecular aspects of polymer motion which have been
                      inaccessible until now within chains adhering to more
                      complex architectures.},
      cin          = {JCNS (München) ; Jülich Centre for Neutron Science JCNS
                      (München) ; JCNS-FRM-II / ICS-1 / Neutronenstreuung ;
                      JCNS-1},
      ddc          = {550},
      cid          = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
                      I:(DE-Juel1)ICS-1-20110106 / I:(DE-Juel1)JCNS-1-20110106},
      pnm          = {551 - Functional Macromolecules and Complexes (POF3-551) /
                      6G4 - Jülich Centre for Neutron Research (JCNS) (POF3-623)
                      / 6215 - Soft Matter, Health and Life Sciences (POF3-621)},
      pid          = {G:(DE-HGF)POF3-551 / G:(DE-HGF)POF3-6G4 /
                      G:(DE-HGF)POF3-6215},
      experiment   = {EXP:(DE-MLZ)KWS1-20140101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000361815100010},
      pubmed       = {pmid:26551826},
      doi          = {10.1103/PhysRevLett.115.148302},
      url          = {https://juser.fz-juelich.de/record/256351},
}