Two new aromatic diiodides with ether-sulfone linkages were synthesized via a one-step procedure. A series of poly(arylene ether sulfone amide)s were synthesized by a supported palladium-catalyzed polycondensation of aromatic diiodides having ether-sulfone linkages, aromatic diamines, and CO. Polycondensation reactions were conducted in N,N-dimethylacetamide using a magnetic nanoparticles-bound palladium(II) complex [Fe3O4@SiO2-2P-PdCl2] as the catalyst and 1,8-diazabicycle[5,4,0]-7-undecene as the base at 120 degrees C, yielding poly(arylene ether sulfone amide)s having inherent viscosities of 0.43-0.77 dL/g. The resulting polymers were soluble in polar aprotic solvents and showed glass transition temperatures in the 204-265 degrees C range, with 10% weight losses occurring at temperatures above 456 degrees C in nitrogen. Most of the polymers afforded transparent and tough films by solution-casting with tensile strengths of 71.8-82.2 MPa, Young's moduli of 1.77-2.35 GPa, and elongations at break of 9.3-13.4%. More importantly, this supported palladium catalyst can facilely be separated from the product by simply using an external magnetic field and reused at least seven times with almost consistent activity.