Functional polyimides have been prepared in a bead form by nonaqueous suspension polycondensation. A molybdenum(VI) complex was supported on the functional polyimide particulates containing a triazole group and used as a catalyst in the liquid-phase epoxidation of higher olefins with tert-butyl hydroperoxide as the oxygen source. Serious degradation of the polyimide-supported Mo(VI) catalyst does not happen in air until similar to 400 degrees C. The polyimide-supported Mo catalyst was highly active and selective and could be recycled 10 times with no detectable loss of Mo from the support.
- IMIDAZOLE-CONTAINING POLYMERS
- TERT-BUTYL HYDROPEROXIDE
Ahn, J. H., Kim, J. C., Ihm, S. K., Oh, C. G., & Sherrington, D. C. (2005). Epoxidation of olefins by molybdenum(VI) catalysts supported on functional polyimide particulates. Industrial and Engineering Chemistry Research, 44(23), 8560-8564. https://doi.org/10.1021/ie040287z