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@ARTICLE{Guenther:87266,
      author       = {Guenther, Jens-Uwe and Ahrens, Heiko and Helm, Christiane
                      A. and DESY},
      title        = {{T}wo-{D}imensional {L}amellar {P}hase of {P}oly(styrene
                      {S}ulfonate){A}dsorbed {O}nto an {O}ppositely {C}harged
                      {L}ipid {M}onolaye},
      journal      = {Langmuir},
      volume       = {25},
      issn         = {0743-7463},
      address      = {Washington, DC},
      publisher    = {ACS Publ.},
      reportid     = {PHPPUBDB-7403},
      pages        = {1500-1508},
      year         = {2009},
      note         = {(c) American Chemical Society. Post referee full text in
                      progress (embargo 1 year from January 6, 2009).},
      abstract     = {Polystyrene sulfonate (PSS 77 kDa) adsorbed onto oppositely
                      charged dioctadecyldimethylammonium bromide (DODA)
                      monolayers at the air/water interface is investigated with
                      X-ray reflectivity and grazing incidence diffraction. The
                      alkyl tails of DODA in the condensed phase form an oblique
                      lattice with large tilts and intermediate azimuth angle. On
                      PSS adsorption, the alkyl tail structure is maintained; only
                      the tilt angle changes. Bragg peaks caused by flatly
                      adsorbed, aligned PSS chains are observed, when DODA is in
                      the fluid and also when it is in the condensed phase. The
                      two-dimensional lamellar phase is only found at intermediate
                      PSS bulk concentrations (0.001-1 mmol/L). In this phase, the
                      PSS coverage can be varied by a factor of 3, depending on
                      DODA molecular area and polymer bulk concentration. Charge
                      compensation in the lamellar phase is almost achieved at 1
                      mmol/L. At larger bulk concentrations, PSS adsorbs flatly
                      yet without chain alignment. Presumably, a necessary
                      condition for a two-dimensional lamellar phase is a
                      pronounced electrostatic force which causes a large
                      persistence length as well as repulsion between the aligned
                      chains.},
      keywords     = {Adsorption / Alkylation / Electrolytes / Lipids: chemistry
                      / Polystyrenes: chemistry / Quaternary Ammonium Compounds:
                      chemistry / X-Ray Diffraction / Electrolytes (NLM Chemicals)
                      / Lipids (NLM Chemicals) / Polystyrenes (NLM Chemicals) /
                      Quaternary Ammonium Compounds (NLM Chemicals) /
                      dimethyldioctadecylammonium (NLM Chemicals) / polystyrene
                      sulfonic acid (NLM Chemicals)},
      cin          = {HASYLAB(-2012)},
      ddc          = {670},
      cid          = {$I:(DE-H253)HASYLAB_-2012_-20130307$},
      pnm          = {DORIS Beamline BW1 (POF1-550) / FS-Proposal: II-20080134
                      (II-20080134)},
      pid          = {G:(DE-H253)POF1-BW1-20130405 / G:(DE-H253)II-20080134},
      experiment   = {EXP:(DE-H253)D-BW1-20150101},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:19125602},
      UT           = {WOS:000262827400036},
      doi          = {10.1021/la802987k},
      url          = {https://bib-pubdb1.desy.de/record/87266},
}