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Influence of organic compounds on the cyclization, degradation and carbonization processes of poly(pyromellitimides)

✍ Scribed by Yu. N. Sazanov; N. G. Stepanov; L. A. Shibaev; M. I. Tsapovetsky; T. A. Antonova; A. V. Gribanov; T. Szekely; I. Bertoti; A. Toth; M. Blazso; E. Jakab


Publisher
John Wiley and Sons
Year
1988
Tongue
English
Weight
320 KB
Volume
39
Category
Article
ISSN
0323-7648

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✦ Synopsis


The niclhods of inass-specLrotric.trie lhernlal analysis, I K spectroscopy, pyrolysis gas cliromalography and X-ray photoelectron spectroscopy were used for tlie invesligation of the effect of bcnzimidazole (BI) on the thermal behaviour of poly(4,4'-oxydiplienylene)-pyrorncllitamie acid (PAA). It is shown lliat the formation of a complex of PAA with BI is accompanied by the ordering of arnidc groups of the polymer, which leads to a decrease in the number of defective units in the resulting polyimide.

Der EinfluP organischer Verbindungen auf Cyclisierungs-, Abbau-und Carbonisierungsprozesse in Poly(pyromel1itimiden) MIL den Methoden Massenspektronietrie-Thcrmoanalyse,

IR-Spekiroskopie, Pyrolyse-Gaschromatographie und Roiitgenphotoelektronen-Spcktroskopie wurdc tler EinfluB von I3c~nzirnidazol (BI) auf das Verhalten von Poly(4,4'-oxydipheny1en)-pyromcllitarnidsaure ( P h A ) bei der thertnisctien Cyclisierung untersucht. Es wird gezeigt, daR die Hildung eines Komplexes von PAA mit BI cine Ordnung dcr Carboxyamid-Gruppen des Polymers bewirkt, was eine Abnahrne der Fehlstrukturen iu dern resultierenden Polyiniid zur Volge hat.


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