Introduction SECTION ONE 1 Nucleophilic Synthetic Methods A. Poly(ether sulfones) B. Poly(ether ketones) 2 Electrophilic Synthetic Methods A. Poly(ether sulfones) B. Poly(ether ketones) C. Poly(phenylene ethers) 3 Additional Synthetic Methods A. Poly(ether sulfones) B. Poly (ether ketones) C. Poly(ether imides) D. Poly(phenylene ethers) SECTION TWO 4 Polyarylethers Derived from Bisphenol A 5 Polyarylethers Derived from 4,4'-Disubstituted Diphenyl Sulfones 6 Crystalline Polyarylethers 7 Polyarylethers Containing Heterocyclic Structures (Non-Imide) 8 Commercialized Polyarylethers and Their Engineering Properties