NDLI: Effects of ethanol and isopropanol on the structures and properties of polyethersulfone/perfluorosulfonic acid nanofibers fabricated via electrospinning

Content Provider	Springer Nature Link
Author	Lu, Pei Pei Xu, Zhen Liang Yang, Hu Wei, Yong Ming Xu, Hai Tao
Copyright Year	2012
Abstract	Blend solutions of polyethersulfone (PES) and perfluorosulfonic acid (PFSA) resin were fabricated into nanofibers via electrospinning. Ethanol (EtOH) and isopropanol (IPA) were employed to investigate the effects of non-solvent (NS) on the structures and properties of the electrospun PES/PFSA nanofibers. Average diameters of the electrospun nanofibers increased with NS content while the water contact angles of the nanofiber membranes decreased. Although all the nanofiber membranes presented strong hydrophobicity initially, the water contact angle would drop to less than 90° within 30 min. Energy dispersive X-ray spectrums (EDS) showed that the nanofibers electrospun from solutions with more NS presented higher sodium content on the surface because more -SO$_{3}$Na groups were on the external plane. N$_{2}$ adsorption-desorption measurement revealed that increase of NS content in the solvent mixtures resulted in nanofibers with surface area much bigger in experiment than that in calculation, which meant rough structures occurred on the surface of electrospun nanofibers. These rough structures were beneficial to improve the frictional resistance between nanofibers and therefore enhanced the break strength and Young’s modulus of the nanofiber membranes.
Starting Page	1
Ending Page	10
Page Count	10
File Format	PDF
ISSN	10229760
Journal	Journal of Polymer Research
Volume Number	19
Issue Number	4
e-ISSN	15728935
Language	English
Publisher	Springer Netherlands
Publisher Date	2012-04-03
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Electrospinning Nanofiber Polyethersulfone Perfluorosulfonic acid Non-solvent Industrial Chemistry/Chemical Engineering Polymer Sciences Characterization and Evaluation of Materials
Content Type	Text
Resource Type	Article
Subject	Organic Chemistry Materials Chemistry Polymers and Plastics

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