Diffusion coefficient in polymer solutions
Article first published online: 9 MAR 2003
Copyright © 1979 John Wiley & Sons, Inc.
Journal of Applied Polymer Science
Volume 23, Issue 10, pages 3021–3025, 15 May 1979
How to Cite
Singh, D. and Nigam, K. D. P. (1979), Diffusion coefficient in polymer solutions. J. Appl. Polym. Sci., 23: 3021–3025. doi: 10.1002/app.1979.070231020
- Issue published online: 9 MAR 2003
- Article first published online: 9 MAR 2003
- Manuscript Received: 30 MAR 1978
Molecular diffusivity of a solute in a solvent may be determined by measuring the extent of dispersion of solute in solvent flowing in a straight circular tube under the conditions of laminar flow. This simple and rapid method for determination of molecular diffusivity in aquous polymer solutions is discussed. Experimental results show a substantial reduction in the solute diffusivity with increase in polymer concentration.