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@ARTICLE{Maeda:186334,
author = {Maeda, Kousaku and Shinyashiki, Naoki and Yagihara, Shin
and Wiegand, Simone and Kita, Rio},
title = {{H}ow does thermodiffusion of aqueous solutions depend on
concentration and hydrophobicity?},
journal = {The European physical journal / E},
volume = {37},
number = {10},
issn = {1292-895X},
address = {Berlin},
publisher = {Springer},
reportid = {FZJ-2015-00410},
pages = {94},
year = {2014},
abstract = {The thermal diffusion of aqueous solutions of mono-,
di-ethylene glycols, poly(ethylene glycol), methanol, and
glycerol is investigated systematically as a function of
concentration using the Thermal Diffusion Forced Rayleigh
Scattering (TDFRS). For all investigated binary mixtures,
the Soret coefficient, S T , decays with increasing
concentration of the non-aqueous component showing two
regions. For aqueous solution of ethylene glycol, at a very
low solute content the decay is steep, while it becomes less
steep for higher solute concentration. All mixtures show a
sign change of S T with concentration. The sign change
concentration is discussed with respect to chemical
structures of solute molecules and the partition
coefficient, log p . It turns out that the number of
hydroxyl groups plays an important role. For the
investigated aqueous mixtures, we find empirical linear
relations between the sign change concentration and the
ratio of the number of hydroxyl groups to the number of
carbon atoms as well as the partition coefficient, log p .},
cin = {ICS-3},
ddc = {530},
cid = {I:(DE-Juel1)ICS-3-20110106},
pnm = {451 - Soft Matter Composites (POF2-451)},
pid = {G:(DE-HGF)POF2-451},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000344339100001},
doi = {10.1140/epje/i2014-14094-1},
url = {https://juser.fz-juelich.de/record/186334},
}