Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5201670 | Polymer Degradation and Stability | 2014 | 11 Pages |
Abstract
The influence of melt processing on the thermal behaviour of PLA was also investigated using temperature modulated differential scanning calorimetry (TMDSC). It was evidenced that the molar mass reduction affects the crystallizability of PLA. Cold crystallization temperature progressively decreases with decreasing molar mass and the metastable α' phase is formed in place of the stable α phase. The αⲠphase can be partially converted into α form during melting giving rise to a double-melting peak. The two peaks can be separated using reversing and non-reversing signals confirming that recrystallization of the αⲠform occurs.
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Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Pierre Erwan Le Marec, Laurent Ferry, Jean-Christophe Quantin, Jean-Charles Bénézet, Frédéric Bonfils, Stéphane Guilbert, Anne Bergeret,