The pyrolysis behaviors of polyimide foam derived from 3,3′,4,4′-benzophenone tetracarboxylic dianhydride/4,4′-oxydianiline
The thermal stability and pyrolysis behaviors of polyimide (PI) foam derived from 3,3′,4,4′‐benzophenone tetracarboxylic dianhydride (BTDA)/4,4′‐oxydianiline (4,4′‐ODA) in air and in nitrogen were studied. The decomposition products of PI foam were analyzed by thermogravimetry‐Fourier transform infr...
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Published in | Journal of applied polymer science Vol. 115; no. 3; pp. 1680 - 1687 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
Hoboken
Wiley Subscription Services, Inc., A Wiley Company
05.02.2010
Wiley |
Subjects | |
Online Access | Get full text |
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Summary: | The thermal stability and pyrolysis behaviors of polyimide (PI) foam derived from 3,3′,4,4′‐benzophenone tetracarboxylic dianhydride (BTDA)/4,4′‐oxydianiline (4,4′‐ODA) in air and in nitrogen were studied. The decomposition products of PI foam were analyzed by thermogravimetry‐Fourier transform infrared spectroscopy (TG‐FTIR). Several integral and differential methods reported in the literatures were used in decomposition kinetics analysis of PI foam. The results indicated that the PI foam was easier to decompose in air than in nitrogen, with ∼ 55% residue remaining in nitrogen versus zero in air at 800oC. The main pyrolysis products were CO2, CO, and H2O in air and CO2, CO, H2O, and small organic molecules in nitrogen. The different dynamic methods gave similar results that the apparent activation energies, pre‐exponential factors, and reaction orders were higher in nitrogen than those in air. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2010 |
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Bibliography: | ark:/67375/WNG-RTKCVCL8-2 istex:1D638EA4D7F8B4AA65D990295004C301355C6212 National Science Council of the Republic of China - No. 2006AA03Z56 ArticleID:APP31189 ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 0021-8995 1097-4628 1097-4628 |
DOI: | 10.1002/app.31189 |