Approximate functions relating specific viscosity of PEO in DMSO vs. concentration respecting intrinsic viscosity for low concentrations

0507468 - ÚH 2020 RIV US eng C - Conference Paper (international conference)
Zelenková, Jana - Filip, Petr
Approximate functions relating specific viscosity of PEO in DMSO vs. concentration respecting intrinsic viscosity for low concentrations.
AIP Conference Proceedings. Volume 2107, Issue 1. Melville: American Institute of Physics, 2019 - (Zatloukal, M.; Musil, J.), č. článku 050008. ISBN 978-0-7354-1839-4. ISSN 0094-243X.
[International Conference on Novel Trends in Rheology /8./. Zlín (CZ), 21.05.2019]
R&D Projects: GA ČR GA17-26808S
Institutional support: RVO:67985874
Keywords : intrinsic viscosity * specific viscosity * poly(ethylene oxide) * dimethyl sulfoxide
OECD category: Fluids and plasma physics (including surface physics)

The plots relating specific viscosity of a solution of poly(ethylene oxide) (PEO) in dimethyl sulfoxide (DMSO) with the corresponding PEO concentration can be seemingly approximated by various functions depending whether the normal, semi-log or log-log coordinates are used. However, these approximations should comply with the physical background of their courses, namely with the values of intrinsic viscosities if concentration of PEO in DMSO is tending to zero. To this aim a procedure of evaluating intrinsic viscosity is proposed and the corresponding approximate functions are selected.
Permanent Link: http://hdl.handle.net/11104/0298465