Superfast kinetics of Nd þ3 , Eu þ3 , and Gd þ3 ions were studied on the surfaces of N, N, N \ , N \ -tetramethylmalonamide (TMMA) and silsesquioxane resins. TMMA and SSQXN-8 were prepared by suspension polymerization and sol-gel routes, respectively. They were identified using elemental analysis, FTIR, H-NMR, 13 C-NMR, MIP, and BET surface area. Kinetic investigations were performed in batch conditions and different models were used to fit the data; Boyd and Helfferich models were found the best. The diffusion of the ions through the resins were very fast and found to be in the order of 10 À16 m 2 /S. Effective diffusions of the studied ions were found to be 10 À15 order of magnitude and directly proportional to the kinetic energy of the transition state. DS* values from À166.044 to À179.297 J mol À1 K À1 were estimated as entropy stability factors of the system.
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