Formation of Polyethylene Glycol on Montmorillonite by Sterilization with Ethylene Oxide
نویسنده
چکیده
-The effect of ethylene oxide-sterilization on homoionic (Na +, K § Ca 2+, Cu 2+, A1 s+, and Fe 3+) montmorillonite samples was examined. The results indicate that ethylene oxide polymerized to polyethylene glycol in the interlayer of Cu 2+-, AP +-, and FeS+-saturated clays, as substantiated by the increase in the d(001) values, as well as by the decrease in the cation-exchange capacity after reaction. On the contrary, ethylene oxide failed to react in the presence of the Na +-, K +-, and Ca2+-clays, likely due to the lower acidity of the exchange cations. Key Words--Adsorption, Infrared spectroscopy, Ethylene oxide, Interlayer cations, Montmorillonite, Polymerization, Sterilization, X-ray powder diffraction.
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