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@ARTICLE{Filippov:839919,
      author       = {Filippov, Sergey K. and Verbraeken, Bart and Konarev, Petr
                      V. and Svergun, Dmitri I. and Angelov, Borislav and
                      Vishnevetskaya, Natalya S. and Papadakis, Christine M. and
                      Rogers, Sarah and Radulescu, Aurel and Courtin, Tim and
                      Martins, José C. and Starovoytova, Larisa and Hruby, Martin
                      and Stepanek, Petr and Kravchenko, Vitaly S. and Potemkin,
                      Igor I. and Hoogenboom, Richard},
      title        = {{B}lock and {G}radient {C}opoly(2-oxazoline) {M}icelles:
                      {S}trikingly {D}ifferent on the {I}nside},
      journal      = {The journal of physical chemistry letters},
      volume       = {8},
      number       = {16},
      issn         = {1948-7185},
      address      = {Washington, DC},
      publisher    = {ACS},
      reportid     = {FZJ-2017-07497},
      pages        = {3800 - 3804},
      year         = {2017},
      abstract     = {Herein, we provide a direct proof for differences in the
                      micellar structure of amphiphilic diblock and gradient
                      copolymers, thereby unambiguously demonstrating the
                      influence of monomer distribution along the polymer chains
                      on the micellization behavior. The internal structure of
                      amphiphilic block and gradient co poly(2-oxazolines) based
                      on the hydrophilic poly(2-methyl-2-oxazoline) (PMeOx) and
                      the hydrophobic poly(2-phenyl-2-oxazoline) (PPhOx) was
                      studied in water and water–ethanol mixtures by small-angle
                      X-ray scattering (SAXS), small-angle neutron scattering
                      (SANS), static and dynamic light scattering (SLS/DLS), and
                      1H NMR spectroscopy. Contrast matching SANS experiments
                      revealed that block copolymers form micelles with a uniform
                      density profile of the core. In contrast to popular
                      assumption, the outer part of the core of the gradient
                      copolymer micelles has a distinctly higher density than the
                      middle of the core. We attribute the latter finding to
                      back-folding of chains resulting from
                      hydrophilic–hydrophobic interactions, leading to a new
                      type of micelles that we refer to as micelles with a
                      “bitterball-core” structure.},
      cin          = {JCNS (München) ; Jülich Centre for Neutron Science JCNS
                      (München) ; JCNS-FRM-II / Neutronenstreuung ; JCNS-1},
      ddc          = {530},
      cid          = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
                      I:(DE-Juel1)JCNS-1-20110106},
      pnm          = {6G4 - Jülich Centre for Neutron Research (JCNS) (POF3-623)
                      / 6G15 - FRM II / MLZ (POF3-6G15)},
      pid          = {G:(DE-HGF)POF3-6G4 / G:(DE-HGF)POF3-6G15},
      experiment   = {EXP:(DE-MLZ)KWS2-20140101},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:28759235},
      UT           = {WOS:000408187400014},
      doi          = {10.1021/acs.jpclett.7b01588},
      url          = {https://juser.fz-juelich.de/record/839919},
}