Graphite Fiber/Polyimide Composites with Improved Processability

Autor:	Paul J. Cavano, Peter Delvigs, David L Klopotek
Rok vydání:	1993
Předmět:	chemistry.chemical_compound Materials science Polymerization chemistry Aryl Diamine Composite number Polymer chemistry Graphite Solubility Composite material Glass transition Polyimide
Zdroj:	MRS Proceedings. 305
ISSN:	1946-4274 0272-9172
DOI:	10.1557/proc-305-33
Popis:	In an effort to improve the processing characteristics of addition-type polyimide matrix resins, the use of flexibilized three-ring and four-ring aryl diamines was investigated. A series of fourteen diamines containing carbonyl and methylene, as well as thio connecting groups was synthesized. The diamines were polymerized with the dimethyl ester of 3,3,′4,4′-benzophenonetetracarboxylic acid, using the monomethyl ester of nadic acid as an end cap. The effect of diamine structure on the solubility and rheological properties during cure, as well as glass transition temperature and thermooxidative stability of neat resins was determined. Graphite fiber-reinforced composites were fabricated from selected resin formulations, and composite thermomechanical properties were investigated.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5b9eb9036690a28ac4e5b7acfaea1ec5 https://doi.org/10.1557/proc-305-33 Zobrazit plný text záznamu Full text from SpringerLink