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- W2108987612 abstract "Allyl-bicyclo-(2,2,1)hept-5-en-dicarboxylic(2,3)imides (allylnadic-imides) are prepared by heating equivalent amounts of allylnadic anhydride and amines. Mixtures of isomers (1-allyl-endo, 6-allyl-endo and exo) were obtained, separated by flash chromatography and identified by 1H- and 13C-NMR. A series of novel allylnadic-imide monomers is described. Upon heating to 250°C oligomers are obtained. Diels—Aider rearrangement and “ene” type addition reactions seem to play a major role in oligomer formation. Bis- and tris-allylnadic-imides are viscous liquids resins or low melting solids, which are soluble in common solvents. Upon heating to 250°C insoluble, high Tg solids are obtained with good thermooxidative and environmental stability and with reduced burning rate. Cured allylnadic-imide resins are excellent high temperature insulators and low permittivity dielectrics. Crosslinked copolymers with maleic-imides and epoxy resins are described. Neat resin and carbon fiber composite properties are reported." @default.
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- W2108987612 date "1989-03-01" @default.
- W2108987612 modified "2023-09-27" @default.
- W2108987612 title "Allylnadic-imides: A new class of heat-resistant thermosets" @default.
- W2108987612 doi "https://doi.org/10.1002/pola.1989.080270415" @default.
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