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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},
}