Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 40: Issue 2
The thermal transformation of an aromatic poly (amide), poly (ortho-oxyamide) and poly (benzoxazole)
Authors:
K. Voloshchuk Moscow mendeleev institute of chemical technology Polymer department Miusskaja square 9 125190 Moscow Russia

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I. Popovic University of beograd Faculty of technology and metallurgy Karnegieva 4 YU-11000 Beograd P.O.B. 494 Yugoslavia

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S. Martinov Moscow mendeleev institute of chemical technology Polymer department Miusskaja square 9 125190 Moscow Russia

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A. Donskikh Moscow mendeleev institute of chemical technology Polymer department Miusskaja square 9 125190 Moscow Russia

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G. Tseitlin Moscow mendeleev institute of chemical technology Polymer department Miusskaja square 9 125190 Moscow Russia

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J. Velickovic University of beograd Faculty of technology and metallurgy Karnegieva 4 YU-11000 Beograd P.O.B. 494 Yugoslavia

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Pages:
773–782
Online Publication Date:
09 Jan 2007
Publication Date:
01 Jun 1993
Article Category:
Research Article
DOI:
https://doi.org/10.1007/bf02546651
Keywords:
aromatic polymers; DSC-TG; kinetics; thermal degradation mechanism; thermal transformation
Restricted access

Abstract  

The thermal behaviour of three aromatic polymers, poly(3,3-dioxy-4,4-diphenylmethane) (POA), poly(2,2-m-phenylene-5,5-dibenzoxazolemethane) (PBO) and a commercial poly-(phenyleneisophthalamide) (Phenylon) was studied by thermal analysis, i.e. DSC and TG. PBO was formed by the progressive thermocyclization of POA. By transforming POA into PBO the thermal stability was increased proportionally to the degree of cyclization, due to the stiffening of the polymer chain. PBO was found to be more thermally stable than Phenylon. The activation energies of the desorption of moisture, cyclization and thermal degradation of the polymers in both nitrogen and air were determined from non-isothermal TG data.

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Cover Journal of Thermal Analysis and Calorimetry
Journal of Thermal Analysis and Calorimetry
Print ISSN:
1388-6150
Online ISSN:
1572-8943

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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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