Estimation of hydration of oxyethylated derivatives of glycerol

Hydration number of molecules of oxyethylated glycerol (OEG) of polymerization degree n = 5, 25 and 30 has been determined by infrared spectroscopy method. According to the experimental results, an OEG_n=5 molecule is able to bind with about 20 water molecules, an OEG_n=25 molecule is able to bind with about 75 water molecules, and an OEG_n=30 molecule is able to bind with about 90 water molecules.