Isoconversional analysis of the nonisothermal crystallization of a polymer melt

被引：1
|
作者：
Vyazovkin, S
Sbirrazzuoli, N
机构：
[1] Univ Alabama, Dept Chem, Birmingham, AL 35294 USA
[2] Univ Nice, Thermokinet Grp, Chem Organ & Metall Mat CMOM, F-06108 Nice 2, France
来源：
MACROMOLECULAR RAPID COMMUNICATIONS | 2002年 / 23卷 / 13期
关键词：
crystallization; differential scanning calorimetry (DSC); kinetics; melt; polyesters;
D O I：
10.1002/1521-3927(20020901)23:13<766::AID-MARC766>3.0.CO;2-0
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The advanced isoconverstional method can be used to determine effective activation energies of the nonisothermal crystallization of polymer melts. The application of this method to differential scanning calorimetric data on the crystallization of poly(ethylene terephthalate) yields an activation energy that increases with the extent of crystallization from -270 to 20 kJ . mol(-1). The variation is interpreted in terms of accepted crystallization models.
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页码：766 / 770
页数：5
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