FTIR study of thermal cyclization processes in the synthesis of polyetherimidazopyrrolones

Authors
Sek, D Kaczmarczyk, B Schab-Balcerzak, E
Citation
D. Sek et al., FTIR study of thermal cyclization processes in the synthesis of polyetherimidazopyrrolones, POLYMER, 40(26), 1999, pp. 7303-7312
Citations number
5
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
POLYMER
ISSN journal
00323861 → ACNP
Volume
40
Issue
26
Year of publication
1999
Pages
7303 - 7312
Database
ISI
SICI code
0032-3861(199912)40:26<7303:FSOTCP>2.0.ZU;2-Z
Abstract
An FTIR method was used to investigate the thermal cyclization process in s ynthesis of polyetherimidazopyrrolones from dietherdianhydrides and 3,3'-di aminobenzidine. It was concluded that the highest degree of cyclization to imidazopyrrolone structure is observed in the case of polymer with bispheno l A group having electron-donating character after dynamic heating, though for the all polyether-imides investigated even at 320 degrees C cyclization are not complete. (C) 1999 Elsevier Science Ltd. All rights reserved.