The interrelation between rheology and spinnability of poly(ethylene oxide) dissolved in poor and good solvents

0489428 - ÚH 2019 RIV IT eng A - Abstract
Zelenková, Jana - Peer, Petra - Filip, Petr
The interrelation between rheology and spinnability of poly(ethylene oxide) dissolved in poor and good solvents.
Annual European Rheology Conference. Naples: The European Society of Rheology, 2018. s. 166.
[Annual European Rheology Conference /12./, Meeting of the Italian Society of Rheology /15./. 17.04.2018-20.04.2018, Sorrento]
R&D Projects: GA ČR GA17-26808S
Institutional support: RVO:67985874
Keywords : electrospun fibres * poly(ethynele oxide) * nanofibres * nanofibrous web
OECD category: Fluids and plasma physics (including surface physics)

Applying rheological characterization of poly(ethynele oxide) solved in good and poor solvents the overlap concentrations were approximated. It was proved for poor solvents that these concentrations are related to quality of electrospun fibres, it means whether the obtained nanofibrous mats are uniformly distributed or not. Therefore, for qualitatively acceptable distribution of nanofibres it is necessary to exceed an overlap concentration for poor solvents. It was shown that for good solvents this criterion fails and no acceptable nanofibrous web is possible to expect even for concentration exceeding an overlap concentration.
Permanent Link: http://hdl.handle.net/11104/0292649