Authors:
Z. Ren University of Science and Technology of China Hefei, Anhui 230026 P.R. China Hefei, Anhui 230026 P.R. China

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W. Liu Henan Yinge Industrial Investment Co. Ltd. Henan 450053 P.R. China Henan 450053 P.R. China

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Y. Hou Institute of Chemistry of Henan Academy of Sciences Zhengzhou, Henan 450002 P.R. China Zhengzhou, Henan 450002 P.R. China

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Y. Zhu Institute of Chemistry of Henan Academy of Sciences Zhengzhou, Henan 450002 P.R. China Zhengzhou, Henan 450002 P.R. China

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L. Chang Institute of Chemistry of Henan Academy of Sciences Zhengzhou, Henan 450002 P.R. China Zhengzhou, Henan 450002 P.R. China

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D. Ma University of Science and Technology of China Hefei, Anhui 230026 P.R. China Hefei, Anhui 230026 P.R. China

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Abstract  

Thermogravimetry (TG) was employed to study the thermal degradation kinetics of poly(etherketone/sulfone)ethylimide (PEK-IE and PES-IE). The corresponding decomposition activation energies and reaction orders were obtained and the comparison was made with their parent polymerspoly(ether-ketone/sulfone) with Cardo group (PEK-C and PES-C). The results show that the degradation activation energies of PEK-IE and PES-IE were lower than that of PEK-C and PES-C; and two stages of the degradation process were found for all the four polymers. For PEK-IE and PES-IE, the activation energies in the first decomposition stage are much lower than that in the second stage and the two stages can be taken as slow induction and fast degradation, whereas for PEK-C and PES-C the activation energies in the first decomposition stage are larger than that in the second stage, and the two stages can both be taken as two fast degradation stages. The decomposition mechanism of the two stages was also speculated.

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation
1969
Volumes
per Year
1
Issues
per Year
24
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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