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@ARTICLE{Arbe:818387,
      author       = {Arbe, Arantxa and Moreno, Angel J. and Allgaier, J. and
                      Ivanova, Oxana and Fouquet, Peter and Colmenero, Juan and
                      Richter, Dieter},
      title        = {{R}ole of {D}ynamic {A}symmetry on the {C}ollective
                      {D}ynamics of {C}omblike {P}olymers: {I}nsights from
                      {N}eutron {S}pin-{E}cho {E}xperiments and {C}oarse-{G}rained
                      {M}olecular {D}ynamics {S}imulations},
      journal      = {Macromolecules},
      volume       = {49},
      number       = {13},
      issn         = {1520-5835},
      address      = {Washington, DC},
      publisher    = {Soc.},
      reportid     = {FZJ-2016-04848},
      pages        = {4989 - 5000},
      year         = {2016},
      abstract     = {We investigate the collective dynamics of comblike polymers
                      displaying nanosegregation in side groups and main-chain
                      rich domains, where side groups and backbones are
                      dynamically equivalent. Neutron spin-echo experiments on
                      poly(alkylene oxide)s with increasing side-group length have
                      been focused on the decay of inter- and intradomain
                      correlations and are complemented with molecular dynamics
                      simulations on a coarse-grained model. In general, a good
                      qualitative agreement between simulation and experiment is
                      found. The collective times at inter- and intradomain levels
                      converge with decreasing temperature, implying a common
                      glass transition, and separate at high temperatures,
                      revealing an increasing role of connectivity. The features
                      of collective relaxations—regarding stretching,
                      characteristic time, and temperature dependence—are
                      independent of branching. The standard stretching for
                      side-group motions and the closeness of collective and
                      self-motions show that the anomalies exhibited by
                      dynamically asymmetric comblike macromolecules disappear.},
      cin          = {JCNS (München) ; Jülich Centre for Neutron Science JCNS
                      (München) ; JCNS-FRM-II / Neutronenstreuung ; JCNS-1},
      ddc          = {540},
      cid          = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
                      I:(DE-Juel1)JCNS-1-20110106},
      pnm          = {6215 - Soft Matter, Health and Life Sciences (POF3-621) /
                      6G15 - FRM II / MLZ (POF3-6G15)},
      pid          = {G:(DE-HGF)POF3-6215 / G:(DE-HGF)POF3-6G15},
      experiment   = {EXP:(DE-MLZ)J-NSE-20140101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000379704000032},
      doi          = {10.1021/acs.macromol.6b00931},
      url          = {https://juser.fz-juelich.de/record/818387},
}