https://doi.org/10.1351/goldbook.15285
Polymer composed of macromolecules containing 2,4,6-trioxo-1,3,5-triazinane-1,3,5-triyl (formerly isocyanurate) rings in the backbone:



Notes:
- An example of structure motifs of a polyisocyanurate is shown below:

- Polyisocyanurates are isomeric with polycyanurates.