Thermal degradation of polyimides—I. Investigation of the role of isoimide structure on degradation process

Autor:	Andrzej Orzeszko, J. Kaminski, T. Chreptowicz, J. Zurakowska-Orszagh
Rok vydání:	1979
Předmět:	Materials science Polymers and Plastics Organic Chemistry General Physics and Astronomy Carbon-13 NMR chemistry.chemical_compound chemistry Chemical engineering Thermal Materials Chemistry Organic chemistry Degradation (geology) Degradation process Imide
Zdroj:	European Polymer Journal. 15:409-413
ISSN:	0014-3057
DOI:	10.1016/0014-3057(79)90162-9
Popis:	The structures of isoimide cycles in polyimides were elucidated from i.r. and 13C NMR spectra of N-phenylphthalimide and N-phenylphthalisoimide. Using i.r. and gas-chromatographic data, conversion of isoimide cycles to the imide form was studied as a function of temperature. This process is irreversible, precluding the presence of the isoimide form at high temperature.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::07d74f040e7301b78d9e8a1b68bd0b74 https://doi.org/10.1016/0014-3057(79)90162-9 Zobrazit plný text záznamu