High molecular weight poly(aryl ether)s were successfully prepared by the Pd-catalyzed polycondensation of 2,2-bis(4-hydroxy-3-methylphenyl)propane (I) with 4,4'-dibromobiphenyl (II). The polycondensation proceeded in toluene in the presence of 4 mol% Pd(OAc)(2), 6mol% 2-(di-tert-butylphosphino)biphenyl, and 6 equiv K3PO4 at 90degreesC for 24 h, giving the polymer with a number-average molecular weight (M,,) of 18000. The resulting polymers were fully characterized by IR and NMR spectroscopies.