Shear-Induced Orientational Order in a Polystyrene/Benzene-d6 Solution As Observed by 2H NMR
- 1 July 1998
- journal article
- Published by American Chemical Society (ACS) in Macromolecules
- Vol. 31 (15) , 4986-4989
- https://doi.org/10.1021/ma971378t
Abstract
Using a home-built Couette-type shear cell we studied the behavior of a concentrated solution of polystyrene in benzene-d6 under shear. Deuterium NMR revealed a shear-dependent splitting of the benzene-d6 signal, indicating partial orientation of the polystyrene due to shear forces. Our preliminary results show a linear relationship between the order parameter Szz of the benzene molecule and the shear rate gamma for the interval 0 s-1 </= gamma < 400 s-1.Keywords
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