| However, modification of PAEK properties by the electrophilic aromatic substitution polycondensation has received less attention to date. |
| Polycondensation proceeds by a reversible nucleophilic substitution reaction of a diamine and a dianhydride, in a polar aprotic solvent. |
| Synthesis mechanisms including polycondensation, addition polymerization via ionic and free radical intermediations, and copolymerization are discussed. |
| Hydroxymethylation and polycondensation reactions in urea-formaldehyde resin synthesis. |
