ROTATIONAL DIFFUSION OF COLLOID SPHERES IN SUSPENSION INVESTIGATED BYDEUTERON NMR

Authors
TOLLE A SILLESCU H
Citation
A. Tolle et H. Sillescu, ROTATIONAL DIFFUSION OF COLLOID SPHERES IN SUSPENSION INVESTIGATED BYDEUTERON NMR, Langmuir, 10(12), 1994, pp. 4420-4422
Citations number
17
Categorie Soggetti
Chemistry Physical
Journal title
Langmuir → ACNP
ISSN journal
07437463
Volume
10
Issue
12
Year of publication
1994
Pages
4420 - 4422
Database
ISI
SICI code
0743-7463(1994)10:12<4420:RDOCSI>2.0.ZU;2-R
Abstract
H-2-NMR pulse techniques have been applied to probe reorientational mo tion of small deuterated polystyrene spheres in suspensions of a visco us liquid on a time scale of 10(-3)-1 s. The rotational correlation fu nctions obtained could be fitted by stretched exponentials with a stre tching parameter that decreases on lowering the temperature. The hydro dynamic sphere radius obtained from the mean rotational correlation ti mes agrees with that from dynamic light scattering in dilute suspensio ns.