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@ARTICLE{Jehnichen:398579,
      author       = {Jehnichen, Dieter and Pospiech, Doris and Friedel, Peter
                      and Horechyy, Andriy and Korwitz, Andreas and Janke, Andreas
                      and Näther, Franziskus and Papadakis, Christine M. and
                      Perlich, Jan and Neu, Volker},
      title        = {{E}ffects of nanoparticles on phase morphology in thin
                      films of phase-separated diblock copolymers},
      journal      = {Powder diffraction},
      volume       = {32},
      number       = {S1},
      issn         = {1945-7413},
      address      = {Cambridge},
      publisher    = {Cambridge Univ. Press},
      reportid     = {PUBDB-2017-14139},
      pages        = {S141 - S150},
      year         = {2017},
      abstract     = {This study investigates the morphology changes in thin
                      diblock copolymer (DiBCP) films occurring in the interaction
                      with modified nanoparticles (NPs). Magnetite (Fe$_3$O$_4$)
                      and silica (SiO $_x$ ) were prepared and used. Poly(pentyl
                      methacrylate-b-methyl methacrylate) (PPMA-b-PMMA) (70/30 mol
                      mol−1, hcp cylinders of the PMMA phase) DiBCP were
                      employed to prepare thin films having thicknesses to realize
                      standing cylinders in pure DiBCP films. The investigations
                      aimed at two topics: (1) morphology after controlled
                      incorporation of organo-modified NP (gold, silver,
                      Fe$_3$O$_4$, SiO $_x$ ) and (2) additional solvent vapour
                      annealing (SVA) with tetrahydrofuran (and chloroform for
                      comparison). The laterally ordered morphology in thin films
                      was examined by GISAXS and atomic force microscopy. Keeping
                      the same type of morphology in nanocomposites, the
                      dimensions of the periodic nanostructure altered depending
                      on type and amount of incorporated NP. It was found that SiO
                      $_x$ clusters enlarge the lateral distance of the PMMA
                      cylinders, whereas metallic NPs reduce this parameter.
                      Applying SVA improves the phase separation slightly, whereas
                      lateral distances were kept constant or were reduced a
                      little. Switching of domain orientation upon SVA could not
                      be detected in the presence of NPs located at the
                      polymer/substrate interface.},
      cin          = {DOOR},
      ddc          = {540},
      cid          = {I:(DE-H253)HAS-User-20120731},
      pnm          = {899 - ohne Topic (POF3-899)},
      pid          = {G:(DE-HGF)POF3-899},
      experiment   = {EXP:(DE-H253)D-A2-20150101 / EXP:(DE-H253)D-BW4-20150101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000410195100023},
      doi          = {10.1017/S0885715616000762},
      url          = {https://bib-pubdb1.desy.de/record/398579},
}