Influence of nonsolvents on dissolution characteristics of nylon-6
Article first published online: 10 MAR 2003
Copyright © 1991 John Wiley & Sons, Inc.
Journal of Applied Polymer Science
Volume 43, Issue 8, pages 1533–1538, 20 October 1991
How to Cite
Raju, K. V. S. N. and Yaseen, M. (1991), Influence of nonsolvents on dissolution characteristics of nylon-6. J. Appl. Polym. Sci., 43: 1533–1538. doi: 10.1002/app.1991.070430816
- Issue published online: 10 MAR 2003
- Article first published online: 10 MAR 2003
- Manuscript Accepted: 2 JAN 1991
- Manuscript Received: 24 AUG 1990
- limiting viscosity;
- radius of gyration;
- onset of precipitation;
- nonsolvent and solvent blends
The dissolution of nylon-6 has been made effective by adding a nonsolvent to the primary solvents that in turn created potential combined contact sites and enhanced the process of dissolution. It is found that 50% of a primary solvent like m-cresol or phenol could be replaced by solvents that are relatively economical and safe to handle. Nylon-6 is found to get dissolved at a faster rate and with ease in a blend of 45 : 55 phenol-toluene compared to other solvent blends. The dependence of limiting viscosity on solute-binary solvent interactions is used as a measure of the solvency power of solvent blends for nylon. The lowering of temperature is found to favour the dissolution of nylon-6 in m-cresol. Its dissolution is found to be optimum in phenol at 55°C and further increase in temperature has adverse effects on it.