高吸水性树脂的辐射接枝制备和结构表征  

PREPARATION OF HIGH WATERABSORBING RESINBY IRRADIATION GRAFT COPOLYMERIZATION

作　　者：杨通在[1] 何成[1] 刘亦农[1] 孙颖[1] 郭高品[1] 

机构地区：[1]中国工程物理研究院核物理与化学研究所

出　　处：《高分子材料科学与工程》1998年第4期123-124,127,共3页Polymer Materials Science & Engineering

基　　金：中国工程物理研究院科学基金

摘　　要：以天然多羟基淀粉和预先中和的水溶性单体丙烯酸为原料，采用γ射线辐射引发接枝共聚，制备高吸水性树脂，得到了吸蒸馏水为２３００倍，吸０．９％ＮａＣｌ为１４０倍的高吸水性树脂，在此基础上，用红外光谱、扫描电镜等分析手段对树脂结构进行了表征。The high waterabsorbing resin has come into wide use in medical and health, chemical industry, agriculture, architecture, gardens, and so on. As irradiation method is better uncomplicated and cheaper than chemical, the high waterabsorbing resin, prepared by γray irradiation graft copolymerization, partially hydrolyzed acrylic acid monomer and natural polyhydroxy polymers such as starch were used as raw materials. The absorption of the resin is 2300 g/g and 140 g/g in case of distilled water and 0.9% NaCl solution, respectively. By the used of elemental analysis. IR spectrum and SEM, the structure and properties of the high waterabsorbing resin have been studied. The results indicate that there are the various size of cavities and random crosslinking in the state of aggragation, and the molecular chains include COONa and COOH groups. The structure characterization is associated with the absorption of the resin.

关 键 词：高吸水性树脂 淀粉 丙烯酸钠 结构 引发剂 

分 类 号：O631.5[理学—高分子化学] O631.1[理学—化学]