CORRELATION BETWEEN SHEAR VISCOSITY AND ANISOTROPIC DOMAIN GROWTH DURING SPINODAL DECOMPOSITION UNDER SHEAR-FLOW

To investigate the influence of a simple shear flow on the late stage spinodal decomposition of a binary polymer blend, the shear viscosity and the domain growth have been studied by a combined rheo-smail-angle -light-scattering technique. In a representation versus the applied st rain, the viscosities as well as the structure deformation can be scal ed on single curves for different shear rates. Both quantifies show tw o characteristic crossovers at the same strain values. The behavior is compared with results of a recent computer simulation.