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@INPROCEEDINGS{Brito:874670,
      author       = {Brito, Mariano},
      title        = {{D}eswelling effects on structural and dynamic properties
                      of ionic microgel suspensions},
      reportid     = {FZJ-2020-01586},
      year         = {2019},
      abstract     = {Microgels are solvent-containing, cross-linked polymer
                      networks of colloidal size that can reversibly swell or
                      deswell in response to external stimuli. Ionic microgels in
                      particular are highly sensitive to changes in environmental
                      conditions such as temperature, solvent quality, polymer
                      cross-linking, suspension ionic strength and particle
                      concentration, which allows for controlling their size and
                      effective interaction. In this work, we study theoretically
                      the effects of concentration-dependent de-swelling of
                      weakly-crosslinked ionic microgels on structural and dynamic
                      suspension properties [1]. We use and compare two different
                      theoretical approaches, namely the Denton-Tang method based
                      on a Poisson-Boltzmann cell model [2] and a thermodynamic
                      perturbation method [3], to calculate the equilibrium
                      microgel size. The state-dependent microgel size is a
                      salient ingredient to the effective interaction potential
                      for spherical ionic microgels derived by Denton [4] which
                      underlies our calculation of static pair correlation
                      functions and structure factors. The latter static
                      quantities are used as input in our calculation of dynamic
                      suspension properties including the hydrodynamic function,
                      collective diffusion coefficient, and low- and
                      high-frequency viscosities. For a quantitative assessment of
                      de-swelling effects, results for static and dynamic
                      suspension properties are compared with corresponding
                      findings for a reference suspension having constant microgel
                      size. References[1] M. Brito, J. Riest, A. R. Denton and G.
                      Nägele, to be submitted.[2] A. R. Denton and Qiyun Tang, J.
                      Chem. Phys. 145, 164901 (2016).[3] T. J. Weyer and A. R.
                      Denton, Soft Matter 14, 4530 (2018).[4] A. R. Denton, Phys.
                      Rev. E 67, 011804 (2003).},
      month         = {Apr},
      date          = {2019-04-22},
      organization  = {MRS 2019 Spring Meeting and Exhibit:
                       Microgel Symposium, Phoenix, AZ (USA),
                       22 Apr 2019 - 26 Apr 2019},
      subtyp        = {After Call},
      cin          = {IBI-4},
      cid          = {I:(DE-Juel1)IBI-4-20200312},
      pnm          = {551 - Functional Macromolecules and Complexes (POF3-551) /
                      SFB 985 B06 - Kontinuierliche Trennung und Aufkonzentrierung
                      von Mikrogelen (B06) (221475706)},
      pid          = {G:(DE-HGF)POF3-551 / G:(GEPRIS)221475706},
      typ          = {PUB:(DE-HGF)6},
      url          = {https://juser.fz-juelich.de/record/874670},
}