To uncover process-structure-correlations among nanocomposites is a necessary prerequisite for the optimization of their product properties. Due to polydispersity of the nanoparticles, a fast method is needed to ensure statistically significant data. Thus, this work focusses on the enhancement of static light scattering in order to in-situ characterize highly anisotropic nanoparticles in a polymeric matrix. As model systems, suspensions of MWNT are prepared and characterized with two different theoretical approaches. The broad scattering vector range required is established by calibrating two commercial detection systems using an adapted nanoparticle standard. The prospects and constraints of this approach are discussed in detail and narrowed down. To minimize the negative impact of MWNT shortening generally associated with compounding on the nanocomposite product properties, two alternative dispersion methods are examined: ultrasonic dispersion and single-screw extrusion. The acting ultrasonic fields are surveyed at varied sonic parameters using a hydrophone. The suspension processed that way is characterized with the method described above, and process-structure-correlations are established. Single-screw extrusion is verified to be a potent dispersion method for the system MWNT-PMMA, and some correlations are uncovered. The direct applicability of static light scattering onto nanocomposites is investigated and discussed.