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@ARTICLE{Schmutzler:859419,
      author       = {Schmutzler, Tilo and Schindler, Torben and Goetz, Klaus and
                      Appavou, Marie-Sousai and Lindner, Peter and Prevost,
                      Sylvain and Unruh, Tobias},
      title        = {{C}oncentration dependent morphology and composition of n
                      -alcohol modified cetyltrimethylammonium bromide micelles},
      journal      = {Journal of physics / Condensed matter Condensed matter},
      volume       = {30},
      number       = {49},
      issn         = {1361-648X},
      address      = {Bristol},
      publisher    = {IOP Publ.80390},
      reportid     = {FZJ-2019-00278},
      pages        = {495001 -},
      year         = {2018},
      abstract     = {Cetyltrimethylammonium bromide (CTAB) is one of the most
                      commonly used surfactants in nanoparticle synthesis and
                      stabilization. Usually, CTAB is used in high concentrations
                      besides co-surfactants leading to well defined products but
                      the complex mesoscopic CTAB structures stay mostly unknown.
                      N-alcohols for instance are widely used co-surfactants which
                      modify the properties of native CTAB dispersions. In this
                      paper we report about a detailed structure analysis of
                      n-alcohol modified CTAB micelles. In particular, n-pentanol
                      and n-hexanol exhibit a significantly different influence on
                      the size, shape and composition of CTAB micelles. Using a
                      combination of small-angle x-ray spectroscopy (SAXS) and
                      neutron scattering spectroscopy (SANS), we applied a method
                      for a complete structural characterization of such micelles.
                      The incorporation of n-pentanol into CTAB micelles generally
                      does not influence the morphology but enhances the number of
                      micelles due to the volume of the added alcohol. N-hexanol,
                      however, leads to an elongation of the micelles as a
                      function of its concentration. It was found by extended
                      contrast variation measurements that this difference is
                      caused by a different distribution of the alcohols between
                      the micellar core and shell. N-pentanol molecules are
                      generally located at the core–shell interface of the CTAB
                      micelles with not only the head group but also two
                      additional methylene bridging groups located in the micellar
                      shell. This leads to an increase of its effective head group
                      volume. In comparison, in n-hexanol modified micelles the
                      whole alkyl chain is located within the micellar core. The
                      detailed structure for n-alcohol modified CTAB micelles is
                      described herein for the first time. The knowledge of the
                      structural details found is indispensable for an in-depth
                      understanding of CTAB–n-alcohol–water interfaces in
                      general which is relevant for the synthesis of many
                      functional nanostructures like mesoporous silica and gold or
                      silver nanoparticles.},
      cin          = {JCNS-FRM-II / Neutronenstreuung ; JCNS-1 / JCNS-2},
      ddc          = {530},
      cid          = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
                      I:(DE-Juel1)JCNS-1-20110106 / I:(DE-Juel1)JCNS-2-20110106},
      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)KWS1-20140101 / EXP:(DE-MLZ)KWS2-20140101},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:30426969},
      UT           = {WOS:000450250000001},
      doi          = {10.1088/1361-648X/aae9c3},
      url          = {https://juser.fz-juelich.de/record/859419},
}