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@ARTICLE{Nusser:137396,
      author       = {Nusser, Klaus and Schneider, Gerald Johannes and Richter,
                      Dieter},
      title        = {{R}heology and {A}nomalous {F}low {P}roperties of
                      {P}oly(ethylene- alt -propylene)–{S}ilica
                      {N}anocomposites},
      journal      = {Macromolecules},
      volume       = {46},
      number       = {15},
      issn         = {1520-5835},
      address      = {Washington, DC},
      publisher    = {Soc.},
      reportid     = {FZJ-2013-03843},
      pages        = {6263 - 6272},
      year         = {2013},
      abstract     = {In this work, poly(ethylene-alt-propylene)–silica
                      nanocomposites, constituting a model nanocomposite system
                      with mostly nonattractive interactions, are studied by means
                      of oscillatory shear rheology. Two different molecular
                      weights were used in order to consider both the effect of
                      nanoparticle presence on the relaxation of short as well as
                      long polymer matrices. An increase of the particle fraction
                      leads on the one hand to the observation of typical
                      characteristics of colloidal rheology such as mechanical
                      reinforcement and the formation of a particle gel. On the
                      other hand and in the focus of our analysis, the increasing
                      particle presence also directly affects the relaxation of
                      the polymer chains. In particular, a shift of the polymer
                      loss maximum in G″(ω) is found in the entangled matrices,
                      whereas anomalous flow behavior is evidenced in the rheology
                      data of highly filled short matrices. We succeeded to
                      explain these macroscopic observations from the rheology
                      experiments by considering small-angle neutron scattering
                      and neutron spin echo results on the same samples, which
                      yield detailed insight into the molecular circumstances
                      responsible for the observed macroscopic property changes.},
      cin          = {Neutronenstreuung ; JCNS-1 / JCNS (München) ; Jülich
                      Centre for Neutron Science JCNS (München) ; JCNS-FRM-II /
                      ICS-1},
      ddc          = {540},
      cid          = {I:(DE-Juel1)JCNS-1-20110106 /
                      I:(DE-Juel1)JCNS-FRM-II-20110218 /
                      I:(DE-Juel1)ICS-1-20110106},
      pnm          = {451 - Soft Matter Composites (POF2-451)},
      pid          = {G:(DE-HGF)POF2-451},
      experiment   = {EXP:(DE-MLZ)External-20140101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000323193300051},
      doi          = {10.1021/ma3025927},
      url          = {https://juser.fz-juelich.de/record/137396},
}