Heterogeneous anion-selective membranes: Influence of a water-soluble component in the membrane on the morphology and ionic conductivity
作者： Jan Schauer , Jaromír Hnát , Libuše Brožová , Jan Žitka , Karel Bouzek
DOI: 10.1016/J.MEMSCI.2012.01.038
关键词:
摘要: Abstract Heterogeneous anion-selective membranes were prepared by blending anion-exchange particles, linear polyethylene, low density polyethylene or poly(ethylene-co-methacrylic acid) and a water-soluble additive poly(ethylene glycol-ran-propylene glycol) at 140 °C with subsequent compression moulding into the shape of flat membrane. SEM micrographs showed that based on had voids around while comprising particles completely encapsulated matrix polymer. The ion conductive, whereas nonconductive. presence in system resulted after extraction water microporous membrane skin considerable increase conductivity. conductivity consisting (before extraction) 66 wt.% 3.4 wt.% 30.6 wt.% was (70 °C) 7.1 S/m, similar without only 3.5 S/m.
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