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@ARTICLE{Kang:172146,
      author       = {Kang, Kyongok and Hong, J. S. and Dhont, Jan K.G.},
      title        = {{L}ocal {I}nterfacial {M}igration of {C}lay {P}articles
                      within an {O}il {D}roplet in an {A}queous {E}nvironment},
      journal      = {The journal of physical chemistry / C},
      volume       = {118},
      number       = {42},
      issn         = {1932-7455},
      address      = {Washington, DC},
      publisher    = {Soc.},
      reportid     = {FZJ-2014-05657},
      pages        = {24803 - 24810},
      year         = {2014},
      abstract     = {We discuss the interfacial migration due to Marangoni
                      forces of clay particles within an oil droplet that is
                      immersed in water, which is relevant for the formation
                      kinetics of Pickering emulsions. Hydrophilic (MMT) and
                      hydrophobic (OMT) clays are studied, where the hydrophilic
                      clay particles adsorb in the oil–water interface, contrary
                      to the hydrophobic clays. The feasibility of an
                      “image–time correlation technique” is discussed, in
                      order to probe the local interfacial migration velocities of
                      clay particles in the oil droplet. Here, correlation
                      functions are constructed from time-resolved images, in
                      order to quantify the local migration of clay particles.
                      Correlation functions are measured at different waiting
                      times, that is, the time after formation of the droplet. The
                      initial decay rate and the baseline of these correlation
                      functions depend on the waiting time in a qualitatively
                      different way for the two clays, which is attributed to the
                      different interfacial migration behavior for the
                      hydrophilic, adsorbing clays and the nonadsorbing,
                      hydrophobic clays as a result of the Marangoni effect.},
      cin          = {ICS-3},
      ddc          = {540},
      cid          = {I:(DE-Juel1)ICS-3-20110106},
      pnm          = {451 - Soft Matter Composites (POF2-451)},
      pid          = {G:(DE-HGF)POF2-451},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000343740300066},
      doi          = {10.1021/jp508333u},
      url          = {https://juser.fz-juelich.de/record/172146},
}