Free volume effects on rheological and thermal properties of polymers and polymer blends
Article first published online: 10 MAR 2003
Copyright © 1991 John Wiley & Sons, Inc.
Journal of Applied Polymer Science
Volume 43, Issue 8, pages 1411–1419, 20 October 1991
How to Cite
Steller, R. and Zuchowska, D. (1991), Free volume effects on rheological and thermal properties of polymers and polymer blends. J. Appl. Polym. Sci., 43: 1411–1419. doi: 10.1002/app.1991.070430802
- Issue published online: 10 MAR 2003
- Article first published online: 10 MAR 2003
- Manuscript Accepted: 9 JAN 1991
- Manuscript Received: 29 MAR 1990
Using the free volume theory, general relations between viscometric and volumetric properties of polymers as functions of temperature and deformation conditions (shear rate or shear stress) have been derived. In particular, it has been shown that thermal expansion of polymers can be calculated from viscometric data. The obtained relations have been applied for description of the rheological behavior of polymer blends. Theoretical predictions have been compared with experimental data. Good agreement between theory and experiment has been stated if rheological properties of blends were compared at a constant shear rate.