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Thermal Degradation Kinetics of Poly(Arylene Ether Nitrile) and its Crosslinked Polymer

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Abstract:

The kinetics of the thermal degradation of Polyarylene ether natriles (PEN) (crosslinked and uncrosslinked) were investigated by thermogravimetric analysis (TGA). The corresponding kinetic parameters of PEN were determined using Flynn–Wall–Ozawa method and Friedman method, respectively. Satava method was also used to discuss the probable degradation mechanisms of PEN. The results showed that the activation energy obtained from Flynn–Wall–Ozawa method was in good agreement with the value obtained from Friedman method. The solid-state decomposition mechanisms of PEN and crosslinked PEN were A2 type (nucleation and growth) and R2 type (phase boundary controlled reaction), respectively. The activation energy and initial decomposition temperature of crosslinked PEN were higher than that of PEN, which indicates that crosslinking treatment is effective to enhance the thermal stability of PEN.

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Periodical:

Advanced Materials Research (Volumes 284-286)

Pages:

1917-1924

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.284-286.1917

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Online since:

July 2011

Authors:

Jia Chun Zhong, Jian Yang, Hai Long Tang, Xiao Bo Liu

Keywords:

Activation Energy, Kinetic Analysis, Polyarylene Ether Nitriles, Thermal Degradation

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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