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The influence of sonication of poly(ethylene oxide) solutions to the quality of resulting electrospun nanofibrous mats
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SYSNO ASEP 0456425 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title The influence of sonication of poly(ethylene oxide) solutions to the quality of resulting electrospun nanofibrous mats Author(s) Peer, Petra (UH-J) ORCID, SAI, RID
Filip, Petr (UH-J) ORCID, RID, SAI
Polášková, M. (CZ)
Kucharczyk, P. (CZ)
Pavlínek, V. (CZ)Source Title Polymer Degradation and Stability. - : Elsevier - ISSN 0141-3910
Roč. 126, April (2016), s. 101-106Number of pages 6 s. Publication form Print - P Language eng - English Country NL - Netherlands Keywords electrospinning ; nanofibres ; poly(ethylene oxide) ; sonication ; degradation Subject RIV CD - Macromolecular Chemistry OECD category Polymer science Institutional support UH-J - RVO:67985874 UT WOS 000372764000013 EID SCOPUS 84958174996 DOI 10.1016/j.polymdegradstab.2016.02.002 Annotation The quality of electrospun nanofibrous mats is significantly subject to the preparation method of entry
polymer solutions whose homogenization is usually carried out by magnetic stirring, vibrational shaking,
sonication or their combination. Among them, an application of sonication can lead to remarkable
changes of solution characteristics accompanying polymer degradation. This is further propagated in
morphological changes of the corresponding electrospun nanofibrous mats. This contribution evaluates
these changes for the solutions of poly(ethylene oxide) (PEO) in water in dependence on concentration
and time of sonication. To this aim, the measurements of rheological characteristics, conductivity and
surface tension were carried out, and GPC (gel permeation chromatography) and SEM (scanning electron
microscopy) techniques were applied. As the mean diameter of electrospun nanofibres is proportional to
the value of viscosity, a master curve for viscosity regarding time of sonication and PEO concentration
was proposed.Workplace Institute of Hydrodynamics Contact Soňa Hnilicová, hnilicova@ih.cas.cz, Tel.: 233 109 003 Year of Publishing 2017
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