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@INPROCEEDINGS{Schiavone:279002,
      author       = {Schiavone, Maria Maddalena and Radulescu, Aurel and
                      Tarallo, O and Di Girolamo, R. and Caporaso, L. and Revay,
                      Z. and Richter, Dieter},
      title        = {{M}icrostructural characterization of {PEM}s based on
                      sulfonated syndiotactic polystyrene in the delta-clathrate
                      and gamma phases},
      reportid     = {FZJ-2015-07172},
      year         = {2015},
      abstract     = {Syndiotactic polystyrene (s-PS) is able to form different
                      kinds of co-crystalline phases with guest molecules of
                      various size, shape and property. Several advanced materials
                      have been produced starting from s-PS co-crystalline films
                      [1-2]. In particular, sulfonated s-PS (s-SPS) can be used as
                      proton-conductive membrane for fuel cells, as it presents
                      high proton conductivity (comparable with Nafion). Besides,
                      it shows a high chemical and thermo-mechanical stability and
                      a low cost [3]. The morphology of different s-PS clathrates
                      and the structural behavior of s-SPS upon hydration can be
                      more thoroughly understood by combining X-rays scattering
                      and FT-IR with SANS [4]. In fact, exploiting the neutron
                      contrast variation between various hydrogenated and
                      deuterated components of s-PS and s-SPS clathrates,
                      additional and unique information about the distribution of
                      guest molecules in the crystalline and amorphous regions and
                      about the hydrated domains of the polymer were obtained.
                      Moreover, the stretching of films leads to occurrence and
                      distribution of scattering features from typical
                      morphologies on specific directions and sectors of detection
                      plan, which enables an accurate structural study of such
                      complex polymeric systems. A complete SANS investigation on
                      s-PS samples, starting from their crystallization with guest
                      molecules to the subsequent sulfonation and hydration, was
                      performed at SANS diffractometer KWS2 of MLZ. This
                      experimental analysis has highlighted that the morphology of
                      these polymeric films is characterized by hydrated channels
                      in the amorphous phase alternated to staples of crystalline
                      lamellae, along the stretching direction.[1]. J.
                      Schellenberg in “Syndiotactic Polystyrene’’, John
                      Wiley $\&$ Sons, Inc. 2010. [2]. G. Guerra et al., J. of
                      Pol. Sci. B, Polymer Physics 2012, 50, 305.[3]. G. Fasano et
                      al., Int. Journal. of Hydrogen Energy 2013, 36, 8038.[4]. F.
                      Kaneko et al., Polymer 2013, 54, 3145 and Chemistry Letters,
                      2015, Accepted.},
      month         = {Jun},
      date          = {2015-06-21},
      organization  = {European Polymer Congress 2015,
                       Dresden (Germany), 21 Jun 2015 - 26 Jun
                       2015},
      subtyp        = {Other},
      cin          = {JCNS (München) ; Jülich Centre for Neutron Science JCNS
                      (München) ; JCNS-FRM-II / Neutronenstreuung ; JCNS-1},
      cid          = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
                      I:(DE-Juel1)JCNS-1-20110106},
      pnm          = {144 - Controlling Collective States (POF3-144) / 6213 -
                      Materials and Processes for Energy and Transport
                      Technologies (POF3-621) / 6G15 - FRM II / MLZ (POF3-6G15) /
                      6G4 - Jülich Centre for Neutron Research (JCNS) (POF3-623)},
      pid          = {G:(DE-HGF)POF3-144 / G:(DE-HGF)POF3-6213 /
                      G:(DE-HGF)POF3-6G15 / G:(DE-HGF)POF3-6G4},
      experiment   = {EXP:(DE-MLZ)KWS2-20140101 / EXP:(DE-MLZ)PGAA-20140101},
      typ          = {PUB:(DE-HGF)6},
      url          = {https://juser.fz-juelich.de/record/279002},
}