Shear light scattering blends

In flow the challenge has been to write convincing equations that couple concentration and composition gradients to elastic stresses and the bulk flow field. When done within a two-fluid model for polymer solutions transitions in light-scattering patterns seen in experiment may be explained. Extensions to polymer blends are potential candidates as explanations of shear-induced shifts of the spinodal and biphasic islands seen experimentally. - ... 

Fig. 8.16 (a) Optical micrograph of PA4,6/PPS (=80/20) blend aimealed in hot chamber for 10 min at 310 °C after shear cessation. Co-continuous morphology appeared, (b) Light scattering profile of this sample... 

Figure 3. Light scattering patterns for the pure blend at a shallow quench depth (AT = 0.5 °C). Data are in column format with each applied shear rate (0, 5.22, and 52.2 s ) at the top of each column. The elapsed time of the experiments are given to the...

Figure 7. light scattering patterns for the modified blend at a shallow quench depth (AT = 2.5 °C)for applied shear rates ofO, 0.093, 0.93 and 9.3 s . 

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