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@ARTICLE{Weyman:843720,
      author       = {Weyman, Alexander and Bier, Markus and Holm, Christian and
                      Smiatek, Jens},
      title        = {{M}icrophase separation and the formation of ion
                      conductivity channels in poly(ionic liquid)s: {A}
                      coarse-grained molecular dynamics study},
      journal      = {The journal of chemical physics},
      volume       = {148},
      number       = {19},
      issn         = {0021-9606},
      address      = {Melville, NY},
      publisher    = {American Institute of Physics},
      reportid     = {FZJ-2018-01272},
      pages        = {193824 -},
      year         = {2018},
      abstract     = {We study generic properties of poly(ionic liquid)s (PILs)
                      via coarse-grained molecular dynamics simulations in bulk
                      solution and under confinement. The influence of different
                      side chain lengths on the spatial properties of the PIL
                      systems and on the ionic transport mechanism is investigated
                      in detail. Our results reveal the formation of apolar and
                      polar nanodomains with increasing side chain length in good
                      agreement with previous results for molecular ionic liquids.
                      The ion transport numbers are unaffected by the occurrence
                      of these domains, and the corresponding values highlight the
                      potential role of PILs as single-ion conductors in
                      electrochemical devices. In contrast to bulk behavior, a
                      pronounced formation of ion conductivity channels in
                      confined systems is initiated in close vicinity to the
                      boundaries. We observe higher ion conductivities in these
                      channels for increasing PIL side chain lengths in comparison
                      with bulk values and provide an explanation for this effect.
                      The appearance of these domains points to an improved
                      application of PILs in modern polymer electrolyte
                      batteries.},
      cin          = {IEK-12},
      ddc          = {540},
      cid          = {I:(DE-Juel1)IEK-12-20141217},
      pnm          = {131 - Electrochemical Storage (POF3-131)},
      pid          = {G:(DE-HGF)POF3-131},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000432853800028},
      pubmed       = {pmid:30307256},
      doi          = {10.1063/1.5016814},
      url          = {https://juser.fz-juelich.de/record/843720},
}