Isothermal crystallization measurements on poly(ethylene terephthalate) by differential enthalpic analysis
- 1 November 1967
- journal article
- research article
- Published by Wiley in Journal of Applied Polymer Science
- Vol. 11 (11) , 2343-2348
- https://doi.org/10.1002/app.1967.070111121
Abstract
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.Keywords
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