文献类型：期刊文章

作　　者：张克举[1] 王乐明[1] 李小红[1] 何培新[1]

机构地区：[1]有机功能分子合成与应用教育部重点实验室,湖北大学化学化工学院,湖北武汉430062

出　　处：《化工学报》

年　　份：2007

卷　　号：58

期　　号：6

起止页码：1592-1597

语　　种：中文

收录情况：AJ、BDHX、BDHX2004、CAS、CSCD、CSCD2011_2012、EI(收录号：20072710691854)、IC、JST、RCCSE、SCOPUS、ZGKJHX、核心刊

摘　　要：A superabsorbent resin was prepared through free-radical polymerization in aqueous solution,which used konjac glucomannan(KGM),acrylic acid(AA)and acrylamide(AM)as raw materials.Graft polymerization was initiated by potassium persulfate(K2S2O8),with N,N′-methylene-bis-acrylamide(NMBA)was used as crosslinking agent .The relationships between the water absorption of the resin and the amounts of initiator,crosslinker,AA and AM as well as reaction temperature,reaction time were studied.This superabsorbent polymer was capable of absorbing distilled water up to 720 times and 0.9%NaCl solution 110 times in its saturated state at ambient temperature when the mass ratio of KGM to monomer was 1∶4,the amount of initiator was 0.35%(based on the weight of monomer),the neutralization degree of monomer was 80 %,the reaction temperature was 55～65℃,and the amount of crosslinker was 0.075%(based on the weight of monomer).Experimental results indicated that the introduction of nonionic group would be suitable for improving absorption ability and salt-resistance of the resulting hydrogels.

关 键 词：魔芋葡甘聚糖 丙烯酸 丙烯酰胺 接枝聚合 高吸水性树脂

分 类 号：TQ316]