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Article

Electrospun Anion-Conducting Ionomer Fibers—Effect of Humidity on Final Properties

1
The Wolfson Department of Chemical Engineering, Technion−Israel Institute of Technology, Haifa 3200003, Israel
2
The Nancy & Stephan Grand Technion Energy Program (GTEP), Technion, Israel Institute of Technology, Haifa 3200003, Israel
*
Authors to whom correspondence should be addressed.
Polymers 2020, 12(5), 1020; https://doi.org/10.3390/polym12051020
Received: 3 April 2020 / Revised: 27 April 2020 / Accepted: 27 April 2020 / Published: 1 May 2020
(This article belongs to the Special Issue Ionic Conductive Polymers for Electrochemical Devices)
Anion-conducting ionomer-based nanofibers mats are prepared by electrospinning (ES) technique. Depending on the relative humidity (RH) during the ES process (RHES), ionomer nanofibers with different morphologies are obtained. The effect of relative humidity on the ionomer nanofibers morphology, ionic conductivity, and water uptake (WU) is studied. A branching effect in the ES fibers found to occur mostly at RHES < 30% is discussed. The anion conductivity and WU of the ionomer electrospun mats prepared at the lowest RHES are found to be higher than in those prepared at higher RHES. This effect can be ascribed to the large diameter of the ionomer fibers, which have a higher WU. Understanding the effect of RH during the ES process on ionomer-based fibers’ properties is critical for the preparation of electrospun fiber mats for specific applications, such as electrochemical devices. View Full-Text
Keywords: electrospinning; fibrous morphology; relative humidity; polymer fibers; ionomer electrospinning; fibrous morphology; relative humidity; polymer fibers; ionomer
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MDPI and ACS Style

Halabi, M.; Mann-Lahav, M.; Beilin, V.; Shter, G.E.; Elishav, O.; Grader, G.S.; Dekel, D.R. Electrospun Anion-Conducting Ionomer Fibers—Effect of Humidity on Final Properties. Polymers 2020, 12, 1020. https://doi.org/10.3390/polym12051020

AMA Style

Halabi M, Mann-Lahav M, Beilin V, Shter GE, Elishav O, Grader GS, Dekel DR. Electrospun Anion-Conducting Ionomer Fibers—Effect of Humidity on Final Properties. Polymers. 2020; 12(5):1020. https://doi.org/10.3390/polym12051020

Chicago/Turabian Style

Halabi, Manar, Meirav Mann-Lahav, Vadim Beilin, Gennady E. Shter, Oren Elishav, Gideon S. Grader, and Dario R. Dekel. 2020. "Electrospun Anion-Conducting Ionomer Fibers—Effect of Humidity on Final Properties" Polymers 12, no. 5: 1020. https://doi.org/10.3390/polym12051020

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