Diffusion of polystyrene in solution studied by photon correlation spectroscopy

摘要: The diffusion behaviour in toluene, and some cases toluene + cyclohexane mixtures, of three polystyrenes, two narrow molecular weight distribution one broad distribution, has been studied using photon correlation spectroscopy. apparent coefficient text-decoration:overlineD increases with increasing concentration all cases. For a sample the function g(1)(K, τ) shows marked departure from single exponential decay as increases, possible causes this are considered terms theory light scattering process. variation is examined.