Preparation of Perfluorosulfonated Ionomer Nanofibers by Solution Blow Spinning

Masahiro Shinkawa; Kazunori Motai; Keita Eguchi; Wataru Takarada; Minoru Ashizawa; Hiroyasu Masunaga; Noboru Ohta; Yuhei Hayamizu; Hidetoshi Matsumoto

doi:10.3390/membranes11060389

journal article Open Access May 25, 2021

Preparation of Perfluorosulfonated Ionomer Nanofibers by Solution Blow Spinning

Masahiro Shinkawa Kazunori Motai Keita Eguchi Wataru Takarada

Minoru Ashizawa

Hiroyasu Masunaga

Noboru Ohta Yuhei Hayamizu

Hidetoshi Matsumoto

Membranes Vol. 11 No. 6 pp. 389 · MDPI AG

View at Publisher Save 10.3390/membranes11060389

Abstract

In this work, we report the preparation of high-purity perfluorosulfonated ionomer (Nafion) nanofibers (NFs) via solution blow spinning (SBS). Fiber formation in solution jet spinning is strongly dependent on the structure of the spinning solution. Upon adding a small amount of poly(ethyleneoxide) (PEO) as a spinning aid to Nafion dispersion, most of the highly ordered Nafion aggregate disappeared, allowing the stable production of bead-free and smooth high-purity NFs (Nafion/PEO = 99/1) by SBS. The microstructure of the blowspun Nafion NFs differed from that of electrospun NFs. In the blowspun NFs, incomplete microphase separation between hydrophilic (ionic) and hydrophobic domains was observed, but the crystallization of CF2−CF2 chains was enhanced owing to the high extensional strain rate and rapid solidification during SBS. These findings provide fundamental information for the preparation and characterization of blowspun Nafion NFs.

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References

Details

Published: May 25, 2021
Vol/Issue: 11(6)
Pages: 389
License: View

Authors

M

Masahiro Shinkawa

Department of Materials Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan

K

Kazunori Motai

Department of Materials Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan

K

Keita Eguchi

Department of Materials Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan

W

Wataru Takarada

Department of Materials Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan

M

Minoru Ashizawa

Department of Materials Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan

H

Hiroyasu Masunaga

Japan Synchrotron Radiation Research Institute, 1-1-1 Kouto, Sayo, Hyogo 679-5198, Japan

N

Noboru Ohta

Japan Synchrotron Radiation Research Institute, 1-1-1 Kouto, Sayo, Hyogo 679-5198, Japan

Y

Yuhei Hayamizu

Department of Materials Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan

H

Hidetoshi Matsumoto

Department of Materials Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan

Funding

Japan Society for the Promotion of Science Award: KAKENHI JP 18H01730

Cite This Article

Masahiro Shinkawa, Kazunori Motai, Keita Eguchi, et al. (2021). Preparation of Perfluorosulfonated Ionomer Nanofibers by Solution Blow Spinning. Membranes, 11(6), 389. https://doi.org/10.3390/membranes11060389

Preparation of Perfluorosulfonated Ionomer Nanofibers by Solution Blow Spinning

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