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The dynamic property of water in these polymers was estimated from the deuterium solution NMR spin-lattice relaxation time, T12H. The T12H values of peaks observed at 4-5 ppm were relatively high, denoting rapid motion, while those of water at 3.7 ppm in PMEA were small, denoting slow mobility. Thus, the states of water molecules in PMEA in terms of chemical shift and mobility were considered different from those in PBA at ambient temperature.Different post-translational changes in eye lens crystallin proteins contribute towards the development of cataract.