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@ARTICLE{Hamada:893093,
      author       = {Hamada, Takashi and Yoshimura, Kimio and Takeuchi, Kota and
                      Watanabe, Shun and Zhao, Yue and Hiroki, Akihiro and
                      Hagiwara, Tokio and Shishitani, Hideyuki and Yamaguchi,
                      Susumu and Tanaka, Hirohisa and Radulescu, Aurel and Ohwada,
                      Kenji and Maekawa, Yasunari},
      title        = {{S}ynthesis and {C}haracterization of
                      4‐{V}inylimidazolium/{S}tyrene‐{C}ografted
                      {A}nion‐{C}onducting {E}lectrolyte {M}embranes},
      journal      = {Macromolecular chemistry and physics},
      volume       = {222},
      number       = {11},
      issn         = {1521-3935},
      address      = {Weinheim},
      publisher    = {Wiley-VCH},
      reportid     = {FZJ-2021-02552},
      pages        = {2100028},
      year         = {2021},
      abstract     = {The β-hydrogen-free imidazole monomer,
                      2-methyl-N-methyl-4(5)-vinylimidazole (2M4VIm), is
                      synthesized to prepare anion exchange membranes (AEMs). The
                      radiation-induced graft polymerization of 2M4VIm and styrene
                      is performed in poly(ethylene-co-tetrafluoroethylene),
                      followed by N-alkylation and ion exchange reactions to
                      prepare 4-vinylimidazolium-containing AEM (2M4VIm/St-AEM).
                      AEMs that have a 6/4 2M4VIm/St molar ratio and 1.7 mmol
                      g−1 ion exchange capacity (IEC) result in 75 mS cm−1
                      conductivity and $60\%$ water uptake at room temperature in
                      water, demonstrating enhanced values compared to previously
                      reported 2-methyl-N-vinylimidazolium-containing AEMs
                      (2MNVIm/St-AEM) that have a similar comonomer ratio and IEC.
                      The small-angle neutron scattering measurements of dry and
                      swollen 2M4VIm/St-AEM reveal hydrophilic/hydrophobic
                      two-phase separation, as observed for 2MNVIm/St-AEM with a
                      similar Im/St composition. 2M4VIm/St-AEMs exhibit higher
                      alkaline stability in 1 m KOH at 80 °C at an early stage
                      owing to the suppression of imidazolium β-elimination but
                      lower long-term stability than that of 2MNVIm/St-AEM due to
                      the ring-opening reaction of the imidazolium group due to
                      its outward orientation from the graft main chain.},
      cin          = {JCNS-FRM-II / JCNS-1 / JCNS-4 / MLZ},
      ddc          = {540},
      cid          = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
                      I:(DE-Juel1)JCNS-1-20110106 / I:(DE-Juel1)JCNS-4-20201012 /
                      I:(DE-588b)4597118-3},
      pnm          = {6G4 - Jülich Centre for Neutron Research (JCNS) (FZJ)
                      (POF4-6G4) / 632 - Materials – Quantum, Complex and
                      Functional Materials (POF4-632)},
      pid          = {G:(DE-HGF)POF4-6G4 / G:(DE-HGF)POF4-632},
      experiment   = {EXP:(DE-MLZ)KWS2-20140101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000645651500001},
      doi          = {10.1002/macp.202100028},
      url          = {https://juser.fz-juelich.de/record/893093},
}