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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 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název The influence of sonication of poly(ethylene oxide) solutions to the quality of resulting electrospun nanofibrous mats Tvůrce(i) Peer, Petra (UH-J) ORCID, SAI, RID
Filip, Petr (UH-J) ORCID, RID, SAI
Polášková, M. (CZ)
Kucharczyk, P. (CZ)
Pavlínek, V. (CZ)Zdroj.dok. Polymer Degradation and Stability. - : Elsevier - ISSN 0141-3910
Roč. 126, April (2016), s. 101-106Poč.str. 6 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova electrospinning ; nanofibres ; poly(ethylene oxide) ; sonication ; degradation Vědní obor RIV CD - Makromolekulární chemie Obor OECD Polymer science Institucionální podpora UH-J - RVO:67985874 UT WOS 000372764000013 EID SCOPUS 84958174996 DOI 10.1016/j.polymdegradstab.2016.02.002 Anotace 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.Pracoviště Ústav pro hydrodynamiku Kontakt Soňa Hnilicová, hnilicova@ih.cas.cz, Tel.: 233 109 003 Rok sběru 2017
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