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@ARTICLE{Maccarrone:172213,
      author       = {Maccarrone, Simona and Scherzinger, Christine and Holderer,
                      Olaf and Lindner, Peter and Sharp, Melissa and Richtering,
                      Walter and Richter, Dieter},
      title        = {{C}ononsolvency {E}ffects on the {S}tructure and {D}ynamics
                      of {M}icrogels},
      journal      = {Macromolecules},
      volume       = {47},
      number       = {17},
      issn         = {1520-5835},
      address      = {Washington, DC},
      publisher    = {Soc.},
      reportid     = {FZJ-2014-05702},
      pages        = {5982 - 5988},
      year         = {2014},
      abstract     = {Sensitive microgels are submicrometer sized, cross-linked
                      polymer particles with a unique swelling behavior changing
                      in response to surrounding conditions like temperature, pH
                      and ionic strength. In this study we influence the swelling
                      capability of thermosensitive microgels microgel by the
                      composition of the solvent (cononsolvency). In particular,
                      we investigate the effects on the structure and dynamics of
                      poly(N-isopropylacrylamide) (PNIPAM) and
                      poly(N,N-diethylacrylamide) (PDEAAM) microgels with
                      different degree of swelling in MeOD/D2O solvent mixture at
                      10 °C using a combination of small angle neutron scattering
                      (SANS) and neutron spin echo (NSE) spectroscopy at
                      nanoseconds scales in the range of several nanometers. The
                      structural characterization including size and density
                      profiles was determined by fitting SANS data. The dynamical
                      behavior of partially collapsed and swollen microgels is
                      comprehensively described within the theory of semidilute
                      polymers in solutions where hydrodynamic interactions are
                      dominant. The partially collapsed PNIPAM microgel particles
                      are not solid diffusing objects but they have relevant
                      contributions from internal motions. Thus, Zimm segmental
                      dynamics can be detected with elevated apparent viscosity.
                      The swollen PDEAAM microgel particles have a faster internal
                      dynamics compared to the partially collapsed PNIPAM. It can
                      also be explained by Zimm-like relaxations with relatively
                      high apparent viscosity and an additional diffusive
                      contribution coming from the cross-linkers.},
      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) / 54G - JCNS
                      (POF2-54G24)},
      pid          = {G:(DE-HGF)POF2-451 / G:(DE-HGF)POF2-54G24},
      experiment   = {EXP:(DE-MLZ)J-NSE-20140101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000341542900013},
      doi          = {10.1021/ma500954t},
      url          = {https://juser.fz-juelich.de/record/172213},
}