Spatially resolved small-angle neutron scattering in the 1-2 plane: a study of shear-induced phase-separating wormlike micelles.
The shear-induced microstructure of a shear-induced phase separating (SIPS) wormlike micellar solution is measured by combining small-angle neutron scattering with a shear cell capable of gap-resolved measurement in the 1-2 (velocity-velocity gradient) plane. Quantitative results show evidence for shear-induced microphase separation accompanied by shear banding. The results suggest both concentration fluctuations and gradients in segmental alignment occurring during SIPS.
Liberatore
Matthew W
MW
Department of Chemical Engineering, University of Delaware, Newark, Delaware 19716, USA.
Nettesheim
Florian
F
Wagner
Norman J
NJ
Porcar
Lionel
L