Abstract
The results of viscometric and optical microscopic studies indicated that both Syntan 25 and Syntan PUR in aqueous concentrated solutions (above their c.m.c. values) at 25 °C are spherical in shape. The size and other physico-chemical parameters e. g. Volumes of the aggregated particleM v, Radius of gyrationR g, Hydrodynamic radius ¯R h, Diffusion coefficient ¯D, and the Correlation times for aggregate rotationT r Translational diffusionT D and effective aggregation timeT a have been derived on the basis of microscopic results. The viscosity data for both Syntan 25 and Syntan PUR were analysed in terms of Einstein equation, Moulik equation, Jones-Dole equation. It has been shown that Syntan PUR was more highly hydrated than that of Syntan 25 although the intrinsic viscosity [η], of Syntan PUR is nearly 1.5 times greater than that of Syntan 25. The Flory-Huggins equation and Thomas equation has been compared in both the Syntans and it has been concluded that the Thomas' constantk 1 may be 12.50 for perfect spherical shape of the particle instead of 10.05 (which has originally been proposed by Thomas).
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Bavinton, J. H., D. E. Peters, J. Soc. Leather Trades' Chemists63, 73 (1979).
Mandal, A. B., D. Mukherjee, D. Ramaswamy, Leather Science28, 283 (1981).
Mandal, A. B., S. Ray, S. P. Moulik, Indian J. Chem.19A, 620 (1980).
Mandal, A. B., S. Ray, A. M. Biswas, S. P. Moulik, J. Phys. Chem.84, 856 (1980).
Mandal, A. B., S. P. Moulik, J. Phys. Chem (Communicated).
Young, C. Y., P. J. Missel, N. A. Mazer, G. B. Benedek, M. C. Carey, J. Phys. Chem.82, 1375 (1978).
Das, D. K., K. T. Sarkar, Leather Science17, 79 (1970).
Einstein, A. “Investigations on the Theory of the Brownian Movement”, p. 58, Dover Publications, New York (N. Y., 1956).
Wennerstrom, H., B. Lindman, O. Soderman, T. Drakenberg, J. B. Rosenholm J. Am. Chem. Soc.101, 6860 (1979).
Einstein, A., Ann. Phys.19, 289 (1906);34, 591 (1911).
Moulik, S. P., J. Phys. Chem.72, 4682 (1968).
Mazer, N. A., M. C. Carey, R. F. Kwasnick, G. B. Benedek, Biochemistry18, 3064 (1979).
Jones, G., M. J. Dole, J. Am. Chem. Soc.51, 2950 (1929).
Franks, H. S., M. W. Evans, J. Chem. Phys.13, 607 (1945).
Thomas, D. J., J. Colloid Sci.20, 267 (1965).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Mandal, A.B., Ramaswamy, D., Das, D.K. et al. The shape, size and flow behaviors of micelle forming various synthetic tannin materials in aqueous solutions. Colloid & Polymer Sci 260, 702–707 (1982). https://doi.org/10.1007/BF01414657
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF01414657