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245 1 0 _aA series of poly(butylimidazolium) ionic liquid functionalized copolymers for anion exchange membranes
490 0 _aJournal of Power Sources. 371, 77-85, 2017, DOI: 10.1016/j.jpowsour.2017.10.038
520 3 _aA new series of ionic liquid functionalized copolymers for anion exchange membranes (AEM) is prepared. Poly(butylvinylimidazolium)(b-VIB) is copolymerized with para-methyl styrene (p-MS) by the radical polymerization formed block copolymers b-VIB/p-MS, which is crosslinked with poly(diphenylether bibenzimidazole) (DPEBI) providing the desired materials b-VIB/p-MS/DPEBI. Structures are characterized via H1NMR, FTIR spectra and elemental analysis. The b-VIB blocks offer the anion conduction function while DPEBI moieties contribute to enhancing other properties. The prepared membranes display chloride conductivity as high as 19.5 mS/cm at 25 °C and 69.2 mS/cm at 100 °C-higher than that of the commercial membrane tokuyuama A201-. Their hydroxide conductivity reaches 35.7 Scm?1 at 25 °C and 73.1 Scm?1 at 100 °C. The membranes showed a linear Arrhenius behavior in the anion conduction, low activation energies and distinguished nanophase separation of hydrophilic/hydrophobic regions by the transmission electron microscopy (TEM) studies. Thermal investigations using TGA and DSC confirm that the membranes are stable up to 250 °C. Particularly, drastically alkaline stability due to no decrease in the hydroxide conductivity after 168 h of treatment with 2M KOH. © 2017 Elsevier B.V.
650 1 4 _aANION CONDUCTIVITY
650 1 4 _aANION EXCHANGE MEMBRANE
650 1 4 _aFUEL CELL
700 1 2 _aOuadah A.
700 1 2 _aXu H.
700 1 2 _aLuo T.
700 1 2 _aGao S.
700 1 2 _aWang X.
700 1 2 _aFang Z.
700 1 2 _aJing C.
700 1 2 _aZhu C.
856 4 0 _uhttps://drive.google.com/file/d/1ms-goIgdSYAymDAttsEiUc-z_icUpiLh/view?usp=drive_link
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