Spectroscopic studies of new model compounds for poly[N,N′-bis(phenoxyphenyl)pyromellitimide]

New model compounds for poly[N,N′‐bis(phenoxyphenyl)pyromellitimide] have been synthesized in order to investigate the formation of imine bonds which are proposed to form during the curing process and lead to crosslinking in the bulk polymer. Raman studies show that terminal amines can react with im...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	Journal of polymer science. Part A, Polymer chemistry Polymer chemistry, 1992-03, Vol.30 (3), p.419-427
Hauptverfasser:	Saini, Ajay K., Carlin, Clifford M., Patterson, Howard H.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Exact sciences and technology infrared models for polyimide characterization of polyimide N′-bis(phenoxyphenyl)pyromellitimide Organic polymers Physicochemistry of polymers poly[N poly[N,N′‐bis(phenoxyphenyl)pyromellitimide] Polycondensation polyimide Preparation, kinetics, thermodynamics, mechanism and catalysts Raman
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	New model compounds for poly[N,N′‐bis(phenoxyphenyl)pyromellitimide] have been synthesized in order to investigate the formation of imine bonds which are proposed to form during the curing process and lead to crosslinking in the bulk polymer. Raman studies show that terminal amines can react with imide carbonyls during curing to form CN bonds. The Raman band due to CN appears at 1656 cm−1 and the band due to CO closest to the imine bond is observed at 1742 cm−1. These results are in agreement with previously published results on vapor deposited polyimide films.
ISSN:	0887-624X 1099-0518
DOI:	10.1002/pola.1992.080300309