Temperature-modulated DSC applied to the transformation kinetics of polymer crystallization

被引：21
|
作者：
Toda, A [1 ]
Arita, T [1 ]
Tomita, C [1 ]
Hikosaka, M [1 ]
机构：
[1] Hiroshima Univ, Fac Integrated Arts & Sci, Higashihiroshima 7398521, Japan
来源：
POLYMER JOURNAL | 1999年 / 31卷 / 09期
关键词：
temperature-modulated differential scanning calorimetry; crystallization kinetics; phase angle;
D O I：
10.1295/polymj.31.790
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Temperature-modulated differential scanning calorimetry (T-MDSC) has been applied to the isothermal crystallization of poly(vinylidene fluoride), isotactic polypropylene, syndiotactic polypropylene, poly(ethylene terephthalate), poly(caprolactam) and poly(ethylene succinate). It has been confirmed that the imaginary part of the apparent heat capacity determined by T-MDSC gives the temperature dependence of linear growth rate. The proper choice of the baseline for the phase angle of the complex heat capacity has been discussed and it is concluded that the change in the crystallinity evaluated from the integration of mean exothermic heat flow can be used as the baseline.
引用
收藏
页码：790 / 794
页数：5
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