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Study of the processing chemistry of polyimides with thermogravimetry/Fourier transform infrared/mass spectrometry techniques
Author(s) -
Xie Wei,
Heltsley Rebecca,
Li HanXu,
Lee Charles,
Pan WeiPing
Publication year - 2001
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.10190
Subject(s) - fourier transform infrared spectroscopy , thermogravimetry , polyimide , curing (chemistry) , mass spectrometry , evolved gas analysis , infrared , infrared spectroscopy , chemistry , polymer chemistry , fourier transform ion cyclotron resonance , chemical engineering , analytical chemistry (journal) , materials science , organic chemistry , thermal analysis , inorganic chemistry , thermal , chromatography , optics , layer (electronics) , meteorology , engineering , physics
One of the fundamental aspects of the carbon fiber‐reinforced, high‐temperature polyimide composite AFR700B/T650‐35, namely, the curing chemistry involved in the polyimide formation, was studied in real time with thermogravimetry/Fourier transform infrared (FTIR)/mass spectrometry (MS) evolved‐gas analysis techniques. The off‐gas reaction products identified by FTIR and MS essentially confirmed the literature polyimide curing mechanisms. However, the FTIR/MS data obtained could also accommodate a reversed curing chemistry in which the elimination of water from amide ester formation occurred first and was followed by the release of methanol from subsequent imidization. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 83: 2213–2224, 2002
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