Copolyester studies. II. Melting and crystallization behavior of tetramethylene terephthalate–tetramethylene sebacate copolymers
Article first published online: 9 MAR 2003
Copyright © 1979 John Wiley & Sons, Inc.
Journal of Applied Polymer Science
Volume 23, Issue 4, pages 1077–1093, 15 February 1979
How to Cite
Marrs, W., Peters, R. H. and Still, R. H. (1979), Copolyester studies. II. Melting and crystallization behavior of tetramethylene terephthalate–tetramethylene sebacate copolymers. J. Appl. Polym. Sci., 23: 1077–1093. doi: 10.1002/app.1979.070230413
- Issue published online: 9 MAR 2003
- Article first published online: 9 MAR 2003
- Manuscript Received: 25 AUG 1977
The melting and crystallization behavior of poly(tetramethylene terephthalate) and its copolymers with tetramethylene sebacate (≯ 20 mol %) has been studied using differential scanning calorimetry (DSC). The effect of the sebacate concentration on equilibrium melting temperature and crystallization behavior is discussed in terms of the theory of equilibrium crystallization of random copolymers. The multiple-melting behavior of these systems is described and interpreted in terms of the theory of equilibrium melting of chain-folded crystals, together with molecular fractionation during crystallization and melting and recrystallization during the DSC scan.