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将50％丙烯酰胺水溶液辐射聚合—交联得到的聚丙烯酰胺水凝胶(PAM-HG)进行悬浮水解,在聚合物大分子的侧链上引入部分—COONa基因,使PAM-HG具有高分子电解质的性质,从而导致PAM-HG的水保持量从350g水/g绝干聚合物提高到958g水/g绝干聚合物,达到了超级吸水材料的水平。
Polyacrylamide hydrogel (PAM-HG) obtained by radiation polymerization-crosslinking of 50% aqueous solution of acrylamide was suspended and hydrolyzed to introduce part of the -COONa gene into the side chain of the polymer macromolecule so that the PAM-HG had a high molecular weight Electrolyte properties, resulting in PAM-HG water retention from 350g water / g of dry polymer to 958g water / g of dry polymer to achieve the level of super absorbent material.