Novel maleimide functionalized oligomers have been prepared by a multistage route involving the reaction of maleic anhydride with hindered primary polyamines derived from the acid catalysed oligomerization of diphenyl ether (DPE) with formaldehyde. Mixtures of maleimide and isomaleimide functionalized oligomers can also be formed depending on conditions. The oligomers have good processability and can be conveniently polymerized by heating to form crosslinked polymers exhibiting potential for service up to about 200°C. The neat resin mechanical properties are comparable with other high performance thermosets for 150-200°C performance
Посилання на статтю:
Novel maleimide functionalized oligomers: 3. Functionalization of preformed oligomers / Michael S. Chisholm* // Polymer. – 1992. – Vol 33. – P. 847-851.