ISSN:
0887-624X
Keywords:
Diels-Alder polymerization
;
polyimides
;
furyl-substituted maleamic acids and maleimides
;
furyl-maleimide AB Diels-Alder monomers
;
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
2-Furoyl chloride reacted with the monomaleamic acids 1a-1d derived from a aromatic diamine to yield a new series of maleamic acids 2a-2d. The latter were cyclodehydrated to afford maleimides 3a-3d which behaved as AB-monomers for a Diels-Alder polymerization. In addition, the monomaleamic acid 4 derived from 4-aminophenol reacted with 2-furoyl chloride to yield maleamic acid 5. It was cyclodehydrated to maleimide 6 which is a novel polymer precursor. The monomers were characterized by IR and 1H-NMR spectroscopy. Their thermal polymerization was investigated by DTA. Maleamic acids 2a-2d and 5 were cured at 280°C for 22 h to yield polymers which were characterized by TGA and isothermal gravimetric analysis (IGA). They were stable up to 340-376°C and afforded anaerobic char yield of 55-64% at 800°C. © 1992 John Wiley & Sons, Inc.
Additional Material:
9 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/pola.1992.080300927
