The diffusion properties of dextran molecules in water have been followed by use of boundary relaxation techniques (refractive index and tracer measurements) and by photon correlation spectroscopy. Measurements have been carried out up to concentrations of ca. 250 kg m–3. The diffusion coefficients and their inter-relationships have been interpreted in terms of the non-ideal behaviour of flexible polymers.
B. N. Preston, W. D. Comper, A. E. Hughes, I. Snook and W. van Megen, J. Chem. Soc., Faraday Trans. 1, 1982, 78, 1209 DOI: 10.1039/F19827801209
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