Polyimides based on novel multifunctional maleimide derivative

Maleimido derivative (MAF) of aniline-formaldehyde (AF) resin was prepared by the reaction of AF with maleic anhydride. The MAF was characterized by e lemental analysis, IR spectroscopy and thermogravimetry. A MAF having 3 to 4 maleimido groups was reacted with various grades of furan resin (FR) thro ugh Diels-Alder reaction. The resultant polyimides were characterized by IR spectral studies and thermal properties. Both MAF and FR components were p olymerized in situ on glass and carbon fiber. The physical, chemical and me chanical properties of the resultant composites have been determined.