Details

Autor(en) / Beteiligte

• Andjelić, Saša
• Jamiolkowski, Dennis
• McDivitt, James
• Fischer, Jerome
• Zhou, Jack
• Vetrecin, Robert

Titel

Crystallization study on absorbable poly(p-dioxanone) polymers by differential scanning calorimetry

Ist Teil von

• Journal of applied polymer science, 2001-01, Vol.79 (4), p.742-759

Ort / Verlag

New York: John Wiley & Sons, Inc

Erscheinungsjahr

2001

Link zum Volltext

Quelle

Wiley Online Library

Beschreibungen/Notizen

• An investigation was carried out on the crystallization behavior of p‐dioxanone polymers using differential scanning calorimetry (DSC). Kinetic analyses were performed on data collected primarily during isothermal crystallization. Isothermal data were treated within the framework of the classical Avrami equation. Using this approach, both the Avrami exponent, n, and the crystallization half‐time, t1/2, were evaluated and their implications are discussed for each system studied. It is shown that a small change in the polymer's composition greatly affects the crystallization kinetics, as well as the crystallizability of the materials. Additionally, nonisothermal crystallization under controlled heating and cooling rates was explored. In the case of cooling from the melt, the Ozawa theory and the recently proposed Calculus method were employed to describe the nonisothermal crystallization kinetics. In view of our results, the validity of these two estimation techniques for determining important kinetic and morphological parameters is also discussed. © 2000 John Wiley & Sons, Inc. J Appl Polym Sci 79: 742–759, 2001