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• W77487608 abstract "In this paper we present a new one-pot synthesis method of poly(acrylate-co-acrylamide) superabsorbent polymer via partial alkaline hydrolysis of acrylamide using microwave irradiation. This method allows to hydrolysis, polymerization and gelation to take place in one pot during a very short reaction time (90 s), and with no need to operate under inert atmosphere. The degree of hydrolysis of the gel was determined by a back titration method. The gel is compact and has a water absorbency of 1031 g/g while the corresponding copolymer prepared from polymerization of sodium acrylate and acrylamide, using microwave irradiation and under the same experimental conditions, has a water absorbency of only 658g/g. This difference in water absorbency is discussed. FTIR spectroscopy was used to verify the hydrolysis and the formation of sodium acrylate. Scanning electron microscopy (SEM) showed that the synthesized hydrogel has a macroporous structure. The influence of the environmental parameters on water absorbency such as the pH and the ionic force was also investigated." @default.
• W77487608 created "2016-06-24" @default.
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• W77487608 date "2015-02-12" @default.
• W77487608 modified "2023-09-27" @default.
• W77487608 title "Preparation of poly(sodium acrylate-co-acrylamide) superabsorbent copolymer via alkaline hydrolysis of acrylamide using microwave irradiation" @default.
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