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@ARTICLE{Gold:839990,
      author       = {Gold, Barbara and Hövelmann, Claas and Lühmann, N. and
                      Pyckhout-Hintzen, W. and Wischnewski, A. and Richter, D.},
      title        = {{T}he microscopic origin of the rheology in supramolecular
                      entangled polymer networks},
      journal      = {Journal of rheology},
      volume       = {61},
      number       = {6},
      issn         = {1520-8516},
      address      = {Melville, NY [u.a.]},
      publisher    = {Inst.},
      reportid     = {FZJ-2017-07560},
      pages        = {1211 - 1226},
      year         = {2017},
      abstract     = {Supramolecular groups in polymeric systems lead to
                      responsive materials which are ideally suited for
                      applications in dynamic environments. The key to their
                      advanced properties such as shape-memory or self-healing is
                      the reversibility of secondary interactions which can be
                      triggered by external stimuli such as temperature, light, or
                      pH-value. Controlling the (mechanical) behavior of such
                      systems requires a precise understanding of intrinsic
                      properties. We present a multimethod study of transient
                      polyisoprene networks that were functionalized with
                      different amounts of hydrogen bonding urazole groups. This
                      work aims at understanding rich rheological features on the
                      basis of their microscopic origin. First, the
                      thermorheological simple behavior is validated
                      experimentally. Subsequently, we characterize the underlying
                      microscopic processes by broadband dielectric spectroscopy
                      (α-process and α∗-process), differential scanning
                      calorimetry (glass transition behavior), and
                      Fourier-transform infrared spectroscopy (thermodynamics of
                      group association/dissociation). Based on these results, the
                      influence of the supramolecular groups on the rheological
                      response is analyzed. The observed features such as the
                      onset of elastomeric properties in the flow regime, a
                      drastic increase in the chain relaxation time with an
                      increasing amount of functional groups, and the occurrence
                      of a second rheological relaxation process, which is the
                      most prominent effect, are discussed and related to their
                      physical origin.},
      cin          = {ICS-1 / Neutronenstreuung ; JCNS-1 / JCNS-2},
      ddc          = {530},
      cid          = {I:(DE-Juel1)ICS-1-20110106 / I:(DE-Juel1)JCNS-1-20110106 /
                      I:(DE-Juel1)JCNS-2-20110106},
      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},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000414273200016},
      doi          = {10.1122/1.4998159},
      url          = {https://juser.fz-juelich.de/record/839990},
}