Novel heterogeneous aminated polystyrene and polyacrylate resins and vinylpyridine copolymerized with methylmethacrylate and buthylmethacrylate, were synthesized, characterized and used as supports for MTO immobilization. FTIR, UV-VIS, chemical analysis and C-13 NMR indicate that tertiary amine and pyridine N-oxides can act as ligands for MTO anchoring onto polymeric resins. The amount of rhenium incorporated and the interaction between N and Re varied with the ligand type and the polymer. MTO immobilized on oxidized supports was proner to leaching than non-oxidized supports during alpha-pinene epoxidation with hydrogen peroxide. MTO supported on copolymers were more effective for the latter reaction than MTO supported on tertiary amines or commercial polyvinylpyridine. (c) 2005 Elsevier B.V. All rights reserved.