Abstract
IT is generally agreed that the relation between intrinsic viscosity and degree of polymerization (D.P.), for the majority of polymer systems, is of the form [η] = K (D.P.)a; but there appears to be no slackening in the controversy as to the numerical values of K and α for a particular system. Most of the values have been obtained from measurements of the intrinsic viscosity and osmotically determined degree of polymerization on nearly homogeneous fractions. Apart from experimental error, there is a number of ways in which discrepancies can arise. High intrinsic viscosities may not be free from the influence of the non-Newtonian behaviour of the solutions from which they are derived; fractions may not be sufficiently homogeneous; and membranes may not be strictly semi-permeable1.
This is a preview of subscription content, access via your institution
Access options
Subscribe to this journal
Receive 51 print issues and online access
$199.00 per year
only $3.90 per issue
Buy this article
- Purchase on SpringerLink
- Instant access to full article PDF
Prices may be subject to local taxes which are calculated during checkout
Similar content being viewed by others
References
Philipp, H. J., and Bjork, C. F., J. Polymer Sci., 6, No. 4, 383 (1951).
Boissonnas, C. G., and Meyer, K. H., Helv. Chim. Acta, 20, 783 (1937). Higginbotham, R. S., Shirley Institute Mem., 24, 221 (1950); or, J. Text. Inst., 42, No. 6, T235 (1951). Gilbert, G. A., Graff-Baker, C., and Greenwood, C. T., J. Polymer Sci., 6, No. 5, 585 (1951). Lang, H., Kolloid-Z., 122, 165 (1951).
Fuoss, R. M., and Mead, D. J., J. Phys. Chem., 47, 59 (1943).
Schulz, G. V., Z. physik. Chem., A, 176, 317 (1936).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
HARLAND, W. Relation between Intrinsic Viscosity and Degree of Polymerization. Nature 170, 667 (1952). https://doi.org/10.1038/170667a0
Issue date:
DOI: https://doi.org/10.1038/170667a0
