Isothermal crystallization measurements on poly(ethylene terephthalate) by differential enthalpic analysis
Article first published online: 9 MAR 2003
Copyright © 1967 John Wiley & Sons, Inc.
Journal of Applied Polymer Science
Volume 11, Issue 11, pages 2343–2348, November 1967
How to Cite
Miller, B. (1967), Isothermal crystallization measurements on poly(ethylene terephthalate) by differential enthalpic analysis. J. Appl. Polym. Sci., 11: 2343–2348. doi: 10.1002/app.1967.070111121
- Issue published online: 9 MAR 2003
- Article first published online: 9 MAR 2003
- Manuscript Revised: 20 APR 1967
- Manuscript Received: 10 MAR 1967
The process of solid-phase crystallization in poly(ethylene terephthalate) has been followed by means of differential enthalpic analysis. Kinetic data for the process has been obtained for isothermal annealing from 100 to 115°C., showing induction times and first-order rate dependence. For the material studied, undrawn polyester filaments, an activation energy of 44 kcal./mole was determined. The technique used provides more direct monitoring of the crystallization phenomenon than that achieved with other methods.