Porous organic polymers (POPs) are excellent candidates for heterogeneous catalysis due to their high surface areas, tuneable textural properties, and excellent chemical, thermal, and mechanical stabilities. The vast number of synthetic routes to POPs also permit readily modifiable chemical functionality and/or broad bottom-up design. Common examples of POPs include covalent organic frameworks (COFs) and conjugated microporous polymers (CMPs), both of which have shown great potential in separation and catalysis applications. However, many POP synthesis routes require precious metal catalysts, which are typically not recycled, significantly driving up cost and hindering scale-up. Furthermore, specifically polymerisable groups in monomeric material are often required for the formation of POP networks. Such monomers are seldomly commercially available or are expensive.