摘要
以玉米淀粉和丙烯酸为主要原料,采用溶液聚合的方法,详细研究了H2O2、K2S2O8-Na2S2O3、Mn3+及Ce4+等不同种类氧化-还原引发体系对淀粉与丙烯酸接枝共聚物吸水性能的影响,用FTIR、XRD、DSC等方法对共聚产物结构进行了表征。通过对不同氧化-还原引发体系的引发机理分析和吸水性能测试结果比较,研究表明采用K2S2O8-Na2S2O3做引发体系时,接枝产物的吸水倍率最高,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 means of FTIR,XRD,TGA methods.The effects of different kinds of oxidation reduction initiators such as H2O2,K2S2O8-Na2S2O3,Mn^3＋ and Ce^4＋ on absorbencies of de-ionized water and running water for copolymer were studied in details.The copolymer prepared by corn starch and acrylic acid,using K2S2O8-Na2S2O3 as initiator,can absorb de-ionized water nearly to 1000g/g.In addition,using Ce^4＋ as initiator,the copolymer can absorb de-ionized water about 600g/g.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2008年第2期290-292,296,共4页
Journal of Functional Materials
基金
国家自然科学基金资助项目(50673047)
山东省优秀中青年科学家科研奖励基金资助项目(2005BS09002)
