淀粉与丙烯酸接枝共聚物吸水性能的影响因素研究  

Effects on the absorbency of graft copolymer prepared by acrylic acid with starch

作　　者：王存国[1] 董晓臣[1] 何丽霞[1] 刘维[1] 董献国[1] 高晓平[1] 

机构地区：[1]青岛科技大学高分子科学与工程学院橡塑材料与工程教育部重点实验室,山东青岛266042

出　　处：《功能材料》2007年第11期1904-1907,共4页Journal of Functional Materials

基　　金：山东省优秀中青年科学家科研奖励基金资助项目(2005BS09002)

摘　　要：采用溶液聚合的方法,制备了淀粉与丙烯酸接枝共聚物;用FTIR等方法对共聚产物结构进行了表征;研究了聚合反应温度、糊化时间、丙烯酸中和度、产物烘干温度、丙烯酸与淀粉不同混合比例等因素对接枝产物吸水性能的影响,优化出了在实验室用玉米淀粉和丙烯酸接枝共聚制备高倍率吸水树脂的工艺条件,制备的吸水树脂吸去离子水近1000g/g。Superabsorbent was prepared by graft co-polymerization using acrylic acid onto corn starch. The molecular structure was characterized by FTIR method. Many factors such as ratios of acrylic acid to starch, neutralization ratio of acrylic acid by NaOH, reaction temperature, gelation time, and drying temperature of product et al were studied systemically. Herein, K2S2O8-Na2S2O3 was used as initiator, through a series of experiments, an optimum rout of preparing graft copolymer was obtained, and the absorbency of copolymer increased violently using this method. The copolymer prepared by corn starch and acrylic acid can absorb de-ionized water about 1000g/g.

关 键 词：吸水树脂 淀粉 丙烯酸 K2S2O8-Na2S2O3引发剂 接枝共聚 

分 类 号：O636[理学—高分子化学]