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@ARTICLE{Brugnoni:845534,
      author       = {Brugnoni, Monia and Scotti, Andrea and Rudov, Andrey A. and
                      Gelissen, Arjan P. H. and Caumanns, Tobias and Radulescu,
                      Aurel and Eckert, Thomas and Pich, Andrij and Potemkin, Igor
                      I. and Richtering, Walter},
      title        = {{S}welling of a {R}esponsive {N}etwork within {D}ifferent
                      {C}onstraints in {M}ulti-{T}hermosensitive {M}icrogels},
      journal      = {Macromolecules},
      volume       = {51},
      number       = {7},
      issn         = {1520-5835},
      address      = {Washington, DC},
      publisher    = {Soc.},
      reportid     = {FZJ-2018-02761},
      pages        = {2662 - 2671},
      year         = {2018},
      abstract     = {We report on the swelling of a polymeric network in doubly
                      thermoresponsive microgels. Silica-core double-shell and
                      hollow double-shell microgels made of an inner
                      poly(N-isopropylmethacrylamide) and an outer
                      poly(N-isopropylacrylamide) shell are studied by exploiting
                      the distinct temperature sensitivities of the polymers. The
                      swelling states of the two shells can be tuned by
                      temperature changes enabling three different swelling
                      states: above, below, and between the distinct volume phase
                      transition temperatures of the two polymers. This enables to
                      investigate the effect of different constraints on the
                      swelling of the inner network. Small-angle neutron
                      scattering with contrast variation in combination with
                      computer simulation discloses how the expansion of the inner
                      shell depends on the material and swelling state of its
                      constraints. In the presence of the stiff core, the
                      microgels show a considerable interpenetration of the
                      polymeric shells: the inner network expands into the outer
                      deswollen shell. This interpenetration vanishes when the
                      outer network is swollen. Furthermore, as predicted by our
                      computer simulations, an appropriate choice of cross-linking
                      density enables the generation of hollow double-shell
                      nanocapsules. Here, the inner shell undergoes a push–pull
                      effect. At high temperature, the collapsed outer shell
                      pushes the swollen inner network into the cavity. At lower
                      temperature, the swelling of the outer network contrary
                      pulls the inner shell back toward the external periphery.},
      cin          = {JCNS-FRM-II / Neutronenstreuung ; JCNS-1 / JARA-HPC},
      ddc          = {540},
      cid          = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
                      I:(DE-Juel1)JCNS-1-20110106 / $I:(DE-82)080012_20140620$},
      pnm          = {6G15 - FRM II / MLZ (POF3-6G15) / 6G4 - Jülich Centre for
                      Neutron Research (JCNS) (POF3-623) / Amphoteric Microgels
                      for Uptake and Release of Polyelectrolytes
                      $(jhpc41_20160501)$},
      pid          = {G:(DE-HGF)POF3-6G15 / G:(DE-HGF)POF3-6G4 /
                      $G:(DE-Juel1)jhpc41_20160501$},
      experiment   = {EXP:(DE-MLZ)KWS2-20140101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000430022000027},
      doi          = {10.1021/acs.macromol.7b02722},
      url          = {https://juser.fz-juelich.de/record/845534},
}