Abstract
Five composite liquids consisting of the rigid rod polymer poly(γ-benzyl α,L-glutamate) and narrowly dispersed, spherical silica particles were studied in DMF by dynamic (DLS) and total intensity (TILS) light scattering. The diffusion constant of the spheres was measured by DLS. The effects of sphere size, rod length, and rod concentration on the diffusion of the spheres were investigated to probe the rod solution microstructure. Microviscosities as low as one-half of the solution viscosity were determined from the sphere diffusion constants near the rod concentration c * , which marks the onset of semidilute dynamics
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