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Nonisothermal melt and cold crystallization kinetics of poly(aryl ether ketone ether ketone ketone)
Author(s) -
Qiu Zhaobin,
Mo Zhishen,
Yu Yingning,
Zhang Hongfang,
Sheng Shouri,
Song Caisheng
Publication year - 2000
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/1097-4628(20000923)77:13<2865::aid-app7>3.0.co;2-2
Subject(s) - crystallization , ketone , differential scanning calorimetry , ether , kinetics , polymer chemistry , activation energy , materials science , aryl , thermodynamics , chemistry , organic chemistry , alkyl , physics , quantum mechanics
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 −264 and 370 KJ/mol for nonisothermal melt and cold crystallization by the Kissinger method. © 2000 John Wiley & Sons, Inc. J Appl Polym Sci 77: 2865–2871, 2000