Polyelectrolyte Composite Membranes Containing Electrospun Ion-Exchange Nanofibers : Effect of Nanofiber Surface Charges on Ionic Transport

Poly(vinyl alcohol) (PVA)-based ion-exchange nanofibers (IEX-NFs) and their composite polyelectrolyte membranes were prepared and characterized. The PVA-based NFs are well dispersed and form a three-dimensional network structure in the polymer matrix, Nafion. All of the prepared membranes show a sim...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 34(2018), 43 vom: 30. Okt., Seite 13035-13040
1. Verfasser: Seino, Fumiyasu (VerfasserIn)
Weitere Verfasser: Konosu, Yuichi, Ashizawa, Minoru, Kakihana, Yuriko, Higa, Mitsuru, Matsumoto, Hidetoshi
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2018
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article Research Support, Non-U.S. Gov't
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520 |a Poly(vinyl alcohol) (PVA)-based ion-exchange nanofibers (IEX-NFs) and their composite polyelectrolyte membranes were prepared and characterized. The PVA-based NFs are well dispersed and form a three-dimensional network structure in the polymer matrix, Nafion. All of the prepared membranes show a similar ion-exchange capacity of ∼1.0 mmol g-1. The ionic conductivities through the PVA- b-PSS-NF/Nafion composite membranes are superior to that of the Nafion membranes, but the conductivity through the PVA-NF/Nafion composite membrane is half that of the Nafion membrane. Our electrokinetic measurements clearly indicate that a high density of ion-exchange groups on the NF surface results in a continuous ionic transport path in the polymer matrix. In addition, the mechanical strength of all of the NF-composite membranes is improved compared with that of the membranes without NF 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
700 1 |a Konosu, Yuichi  |e verfasserin  |4 aut 
700 1 |a Ashizawa, Minoru  |e verfasserin  |4 aut 
700 1 |a Kakihana, Yuriko  |e verfasserin  |4 aut 
700 1 |a Higa, Mitsuru  |e verfasserin  |4 aut 
700 1 |a Matsumoto, Hidetoshi  |e verfasserin  |4 aut 
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