| Abstract: | A series of silatrane based imide resins having different end-caps were prepared by reacting 1-(3-aminopropyl)silatrane with 5-norbornene-endo-2,3-dicarboxylic anhydride (nadic anhydride), 5-methyl-5-norbornene-2,3-dicarboxylic anhydride (methyl nadic anhydride), hexachloronadic anhydride, maleic anhydride, benzophenone-3,3′,4,4′-tetracarboxylic dianhydride or pyromellitic dianhydride in dimethylacetamide. Structural characterisation of the resins was done by elemental analysis and IR. In DSC traces of these resins, an exothermic transition associated with crosslinking was observed above 230°C. Thermogravimetric studies revealed a multistep decomposition reaction. Residual weight at 800°C in nitrogen was found to depend on the backbone structure and ranged from 32–60%. |
