Universität zu Köln

Bjelcic, Monika, Niether, Doreen and Wiegand, Simone ORCID: 0000-0001-6333-1956 (2019). Correlation between thermophoretic behavior and hydrophilicity for various alcohols. Eur. Phys. J. E, 42 (5). NEW YORK: SPRINGER. ISSN 1292-895X

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Abstract

Recent experiments for various amides and sugars showed a clear correlation of the temperature dependence of the Soret coefficient with the hydrophilicity, quantitatively described by the logarithm of the 1-octanol/water partition coefficient logP . This coefficient is a measure for the hydrophilicity/hydrophobicity balance of a solute and is often used to model the transport of a compound in the environment or to screen for potential pharmaceutical compounds. In order to validate whether this concept works also for other water soluble molecules we investigated systematically the thermophoresis of mono- and polyhydric alcohols. As experimental method we use a holographic grating technique called infrared Thermal Diffusion Forced Rayleigh Scattering (IR-TDFRS). Experiments showed that the temperature dependence of the Soret coefficient of polyhydric alcohols also correlates with logP and lies on the same master plot as amides and sugars.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Bjelcic, Monika UNSPECIFIED UNSPECIFIED UNSPECIFIED Niether, Doreen UNSPECIFIED UNSPECIFIED UNSPECIFIED Wiegand, Simone UNSPECIFIED orcid.org/0000-0001-6333-1956 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-149253
DOI:	10.1140/epje/i2019-11831-x
Journal or Publication Title:	Eur. Phys. J. E
Volume:	42
Number:	5
Date:	2019
Publisher:	SPRINGER
Place of Publication:	NEW YORK
ISSN:	1292-895X
Language:	English
Faculty:	Faculty of Mathematics and Natural Sciences
Divisions:	Faculty of Mathematics and Natural Sciences > Department of Chemistry > Institute of Physical Chemistry
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language THERMAL-DIFFUSION; SORET COEFFICIENT; AQUEOUS-SOLUTIONS; TEMPERATURE; WATER; MIXTURES; THERMODIFFUSION; DEPENDENCE; SIGN Multiple languages Chemistry, Physical; Materials Science, Multidisciplinary; Physics, Applied; Polymer Science Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/14925