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

✍ Scribed by Zhaobin Qiu; Zhishen Mo; Yingning Yu; Hongfang Zhang; Shouri Sheng; Caisheng Song

Publisher: John Wiley and Sons
Year: 2000
Tongue: English
Weight: 210 KB
Volume: 77
Category: Article
ISSN: 0021-8995
DOI: 10.1002/1097-4628(20000923)77:13<2865::aid-app7>3.0.co;2-2

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✦ Synopsis

Nonisothermal melt and cold crystallization kinetics of poly(aryl ether ketone ether ketone ketone) (PEKEKK) were investigated by differential scanning calorimetry (DSC). The Avrami equation modified by Jeziorny could only describe the primary stage of nonisothermal crystallization kinetics of PEKEKK. Also, the Ozawa equation could not describe its nonisothermal crystallization behavior. A convenient and reasonable kinetic approach was used to describe the nonisothermal crystallization behavior. The crystallization activation energy were estimated to be Ϫ264 and 370 KJ/mol for nonisothermal melt and cold crystallization by the Kissinger method.

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