化学引发合成玉米淀粉接枝共聚物的一种新方法  

A New Synthesis Method of Corn Starch Grafting Copolymers by Chemical Initiation

作　　者：薛国庆[1] 张利平[1] 潘英[1] 蔡水生[1] 

机构地区：[1]河西学院化学系,甘肃张掖734000

出　　处：《化学世界》2003年第3期131-133,共3页Chemical World

基　　金：甘肃省教育厅资助项目 (2 0 0 117-0 16-0 1)

摘　　要：研究了以 ( NH4) 2 Ce( NO3 ) 6及 ( NH4) 2 S2 O8为引发剂条件下 ,玉米淀粉与丙烯酰胺在纯水溶剂中接枝共聚制备吸水性功能高分子材料的新方法。并从接枝共聚单体选择、淀粉预处理等六个方面讨论了影响接枝共聚物吸水速度的因素。通过对玉米淀粉和接枝共聚物红外光谱的解析 。A new method was studied for the preparation of super water absorbents by grafting co polymerization of acrylamide onto corn starch in water with (NH 4) 2Ce(NO 3) 6 or (NH 4) 2S 2O 8 as chemical initiation agents. The major factors that affect the water adsorption rate of the graft copolymers were discussed, especially in regards to the selection of monomer for the graft copolymers and the pretreatment of starch. Based on the analyses of FTIR spectra of the corn starch and graft copolymer, a new reaction mechanism was suggested.

关 键 词：玉米淀粉 淀粉接枝共聚物 反应机理 

分 类 号：O636.1[理学—高分子化学]