Isothermal melt and cold crystallization kinetics of poly(aryl ether ketone ether ketone ketone)

被引：0
|
作者：
Qiu, ZB
Mo, ZS [1 ]
Zhang, HF
Sheng, SR
Song, CS
机构：
[1] Acad Sinica, Changchun Inst Appl Chem, Polymer Phys Lab, Changchun 130022, Peoples R China
[2] Jiangxi Normal Univ, Dept Chem, Nanchang 330027, Peoples R China
来源：
JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS | 2000年 / 38卷 / 15期
关键词：
crystallization kinetics; poly(aryl ether ketone ether ketone ketone); (PEKEKK); differential scanning calorimetry (DSC);
D O I：
10.1002/1099-0488(20000801)38:15<1992::AID-POLB40>3.0.CO;2-T
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 isothermal melt and cold crystallization kinetics of poly(aryl ether ketone ether ketone ketone) are investigated by differential scanning calorimetry over two temperature regions. The Avrami equation describes the primary stage of isothermal crystallization kinetics with the exponent n approximate to 2 for both melt and cold crystallization. With the Hoffman-Weeks method, the equilibrium melting point is estimated to be 406 degrees C. From the spherulitic growth equation proposed by Hoffman and Lauritzen, the nucleation parameter (K-g) of the isothermal melt and cold crystallization is estimated. In addition, the K-g value of the isothermal melt crystallization is compared to those of the other poly(aryl ether ketone)s. (C) 2000 John Wiley & Sons, Inc.
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收藏
页码：1992 / 1997
页数：6
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