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Superabsorbent polymer of poly[acrylamide-co-(acrylic acid)] by foamed polymerization. I. Synthesis and water swelling properties

机译:聚[丙烯酰胺-共-(丙烯酸)]的超吸收性聚合物通过发泡聚合而得。一,合成及水溶胀性能

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Superabsorbent polymers of acrylamide and acrylic acid were synthesized by foamed polymerization, initiated by ammonium persulfate and N, N, N', N'-tetramethylenediamine. The crosslinking agent N, N'-methylenebisacrylamide, the foaming agent sodium bicarbonate, and a foam stabilizer, a triblock copolymer of polyoxyethylene/polyoxypropylene/polyoxyethylene, were used in the polymerization. The superabsorbent polymer synthesized with an acrylamide/(acrylic acid) ratio of 1:9 by mole at 250 rpm and 45degreesC for 30 min of polymerization time produced the highest water absorption of 2300 times its dried weight. This article describes the synthetic method and measurements of water absorption.
机译:通过过硫酸铵和N,N,N',N'-四亚甲基二胺引发的泡沫聚合合成丙烯酰胺和丙烯酸的超吸收性聚合物。聚合中使用交联剂N,N'-亚甲基双丙烯酰胺,发泡剂碳酸氢钠和泡沫稳定剂,聚氧乙烯/聚氧丙烯/聚氧乙烯的三嵌段共聚物。在250 rpm和45℃聚合30分钟的时间内,以丙烯酰胺/(丙烯酸)摩尔比为1:9合成的超吸收性聚合物,其最大吸水率是其干重的2300倍。本文介绍了合成方法和吸水率的测量。

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