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Effect of alkane chain segment length on the crystallization kinetics of nylon 1010, 1013 and 1014
Author(s) -
Zhang Long,
Zhang Xingyuan,
Wu Lijun,
Deng Yipeng,
Liu Ruijie
Publication year - 2014
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.4684
Subject(s) - isothermal process , crystallinity , crystallization , differential scanning calorimetry , alkane , activation energy , arrhenius equation , materials science , kinetics , polymer chemistry , nylon 6 , avrami equation , thermodynamics , chemistry , crystallization of polymers , composite material , polymer , organic chemistry , hydrocarbon , quantum mechanics , physics
Isothermal and non‐isothermal crystallization kinetics of long alkane chain segment nylon 1010, 1013 and 1014 were investigated by differential scanning calorimetry. The commonly used Avrami equation and that modified by Jeziorny were employed to fit the isothermal and non‐isothermal crystallizations of nylon 1010, 1013 and 1014, respectively. It was found that the crystallization rate of nylon with a longer alkane chain segment was slower than that of nylon with a shorter one at a given cooling rate. The activation energies for the isothermal and non‐isothermal crystallizations determined by the Arrhenius and the Kissinger methods, respectively, decreased with increase of the alkane chain segment length of nylon 1010, 1013 and 1014. Furthermore, the activation energy of the non‐isothermal crystallization process of these nylons, determined by the isoconversional methods of Flynn and Wall and Ozawa, was found to be a decreasing function of the relative degree of crystallinity. © 2014 Society of Chemical Industry