Abstract
A self-constructed laser light scattering photometer including a shear cell has been used to investigate the scattering behavior of polystyrene (M w =10.3×10 6 ) in the viscous solvent dioctyl phthalate (DOP) in shear flow. Only highly dilute solutions were used (c<0.8/[η]). Changes of the scattering intensity were detected, depending on shear rate, detection angle, and polymer concentration. The special feature of our instrument is its ability to detect the scattering intensity in the plane of flow as well as in several planes perpendicular to the flow plane (Zimm planes)
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