Time‐Resolved Diffusion NMR Measurements for Transient Processes

Time‐Resolved Diffusion NMR Measurements for Transient Processes

A general procedure for measurement of time‐resolved diffusion coefficients of molecular species by NMR is described, including the use of methanol for fast temperature‐independent gradient calibration. Mixing it up! Diffusion and temperature of non‐equilibrium systems are monitored with high time‐r...

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Veröffentlicht in:Chemphyschem 2019-04, Vol.20 (7), p.926-930
Hauptverfasser: MacDonald, Thomas S. C., Price, William S., Beves, Jonathon E.
Format: Artikel
Sprache:eng
Schlagworte:
diffusion
NMR
NMR spectroscopy
non-equilibrium
Nuclear magnetic resonance
polymerization
Time measurement
time-resolved spectroscopy
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Zusammenfassung:A general procedure for measurement of time‐resolved diffusion coefficients of molecular species by NMR is described, including the use of methanol for fast temperature‐independent gradient calibration. Mixing it up! Diffusion and temperature of non‐equilibrium systems are monitored with high time‐resolution using NMR with random gradient lists and a simple chemical probe. Mixing up gradients prevents diffusion mix‐ups.
ISSN:1439-4235
1439-7641
DOI:10.1002/cphc.201900150