Shear banding under steady and dynamic deformation is examined using a combination of
rheology and flow-small angle neutron scattering (SANS) in a model wormlike micelle
solution comprised of a mixed cationic/anionic surfactant (cetyltrimethylammonium
tosylate/sodium dodecyl benzene sulfonate) and sodium tosylate. Flow-vorticity plane rheo-
SANS reveals long transients during shear band formation. Flow-gradient plane spatially
resolved flow-SANS measurements probe the microstructure during steady and dynamic …