Preparation and properties of polypyromellitimides prepared from 1,n-bis(4-aminophenoxy)alkanes

Polyamic acids, polyimides and polyisoimides have been prepared from pyromellitic acid dianhydride and 1,n-bis(4-aminophenoxyalkanes). The synthesized polymers were characterized by physical and physico-chemical methods. The prepared polyimides and polyisoimides were found to be insoluble in common...

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Bibliographic Details
Published in:European polymer journal 1991-01, Vol.27 (6), p.487-491
Main Authors: Marek, Miroslav, Labský, Jiří, Schneider, Bohdan, Štokr, Jan, Bednář, Bohumil, Králíček, Jaroslav
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Polycondensation
Preparation, kinetics, thermodynamics, mechanism and catalysts
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Summary:Polyamic acids, polyimides and polyisoimides have been prepared from pyromellitic acid dianhydride and 1,n-bis(4-aminophenoxyalkanes). The synthesized polymers were characterized by physical and physico-chemical methods. The prepared polyimides and polyisoimides were found to be insoluble in common solvents and can only be dissolved in sulphuric acid. Compared with highly aromatic polyimides, their thermal stability is lower by 120–140°.
ISSN:0014-3057
1873-1945
DOI:10.1016/0014-3057(91)90172-K