Research output: Contribution to journal › Article › peer-review
NMR-detected tracer technique to measure diffusion in condensed matter. / Bezrukov, Oleg F.; Deloche, Bertran; Struts, Andrey V.; Veracini, Carlo A.
In: Journal of the Chemical Society - Faraday Transactions, Vol. 93, No. 11, 07.06.1997, p. 2091-2095.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - NMR-detected tracer technique to measure diffusion in condensed matter
AU - Bezrukov, Oleg F.
AU - Deloche, Bertran
AU - Struts, Andrey V.
AU - Veracini, Carlo A.
N1 - Copyright: Copyright 2018 Elsevier B.V., All rights reserved.
PY - 1997/6/7
Y1 - 1997/6/7
N2 - A simple method to study diffusion with the help of NMR has been suggested, based on the measurement of the rate of establishment of equilibrium in a sample with initial non-equilibrium distribution of labelled species. The distribution of components in the sample during the process of diffusion was determined with the use of a standard NMR spectrometer or relaxometer. Diffusion coefficients, D, measured in water and the plastic phase of sulfolane agreed well with the data obtained by other methods. D values for dioxane in cross-linked polyurethane and for water in the lamellar phase of water-ammonium perfluorononanoate (APFN) mixtures were also measured, to demonstrate the application of the method. The technique, being a tracer method, can be applied in a number of cases where the application of spin-echo is difficult (e.g. low concentration of solvent in polymers, in conditions of incomplete averaging of internal fields, large chemical shifts etc.); for the study of mutual diffusion and dissolution kinetics of complex phase mixtures; and for the measurement of D in systems with physical hindrances to diffusion where the method allows one to determine D corresponding to 'infinite' time of observation.
AB - A simple method to study diffusion with the help of NMR has been suggested, based on the measurement of the rate of establishment of equilibrium in a sample with initial non-equilibrium distribution of labelled species. The distribution of components in the sample during the process of diffusion was determined with the use of a standard NMR spectrometer or relaxometer. Diffusion coefficients, D, measured in water and the plastic phase of sulfolane agreed well with the data obtained by other methods. D values for dioxane in cross-linked polyurethane and for water in the lamellar phase of water-ammonium perfluorononanoate (APFN) mixtures were also measured, to demonstrate the application of the method. The technique, being a tracer method, can be applied in a number of cases where the application of spin-echo is difficult (e.g. low concentration of solvent in polymers, in conditions of incomplete averaging of internal fields, large chemical shifts etc.); for the study of mutual diffusion and dissolution kinetics of complex phase mixtures; and for the measurement of D in systems with physical hindrances to diffusion where the method allows one to determine D corresponding to 'infinite' time of observation.
UR - http://www.scopus.com/inward/record.url?scp=33748732184&partnerID=8YFLogxK
U2 - 10.1039/a608419b
DO - 10.1039/a608419b
M3 - Article
VL - 93
SP - 2091
EP - 2095
JO - Transactions of the Faraday Society
JF - Transactions of the Faraday Society
SN - 1463-9076
IS - 11
ER -
ID: 5521542