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Effect of Thermal Treatment on Crystallinity of Poly(ethylene oxide) Electrospun Fibers

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Department of Polymer Engineering, Faculty of Technology, Tomas Bata University in Zlín, Vavreckova 275, 760 01 Zlín, Czech Republic
2
Centre of Polymer Systems, Tomas Bata University in Zlín, Trida Tomase Bati 5678, 760 01 Zlín, Czech Republic
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Institute of Hydrodynamics of the Czech Academy of Sciences, Pod Patankou 5, 166 12 Prague 6, Czech Republic
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Department of Physics and Materials Engineering, Faculty of Technology, Tomas Bata University in Zlín, Vavreckova 275, 760 01 Zlín, Czech Republic
*
Author to whom correspondence should be addressed.
Polymers 2019, 11(9), 1384; https://doi.org/10.3390/polym11091384
Received: 28 June 2019 / Revised: 21 August 2019 / Accepted: 21 August 2019 / Published: 23 August 2019
Post-process thermal treatment of electrospun fibers obtained from poly(ethylene oxide) (PEO) water and methanol solutions was examined. PEO fibers from methanol solution showed larger diameters as observed by scanning electron microscopy. Fibers both from water and methanol solutions exhibited a significant dimensional stability and surface cracking during the specific exposure time after thermal treatments at 40, 50, and 60 °C. Changes in crystallinity after the thermal treatment were studied by wide-angle X-ray diffraction. The kinetics of secondary crystallization were positively influenced by the as-processed level of the amorphous phase and temperature of thermal treatment. Samples treated at 60 °C were degraded by thermooxidation within the time. View Full-Text
Keywords: PEO nanofibers; crystallinity; electrospinning; wide-angle X-ray diffraction; thermal treatment; thermooxidation PEO nanofibers; crystallinity; electrospinning; wide-angle X-ray diffraction; thermal treatment; thermooxidation
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MDPI and ACS Style

Polaskova, M.; Peer, P.; Cermak, R.; Ponizil, P. Effect of Thermal Treatment on Crystallinity of Poly(ethylene oxide) Electrospun Fibers. Polymers 2019, 11, 1384.

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