Synthesis and Flocculation Property of Chitosan-Acrylamide Graft Copolymer  

作　　者：LILiu-zhu MAOLu-yuan WANGXiu-li YANGYong ZHUANGYin-feng 

机构地区：[1]CollegeofMaterialsEngineering,ZhengzhouUniversity,Zhengzhou450052,P.R.China

出　　处：《Chemical Research in Chinese Universities》2004年第2期221-224,共4页高等学校化学研究（英文版）

基　　金：Supported by the National Natural Science Foundation of China(No.30 3716 95 )

摘　　要：Chitosan, as a kind of natural polymer, has many advantages, such as abundant sources, biological degradation, no secondary contamination and facile modification. In this work, we prepared modified chitosan flocculants with double electrical behavior via polymerizing chitosan, acrylamide and sodium carboxymethyl cellulose together by using ammonium persulfate as the indicator in water. The product is a comb-type of chitosan copolymer and a polymeric ampholyte. And then we studied the product by FTIR, UV-Vis, TG, DSC spectrometeries and viscometry, etc. We also performed CACM′s water treat experiment. The effects of pH values, reaction time and dose of the new floccalant on treating various of waste water have been investigated, too.Chitosan, as a kind of natural polymer, has many advantages, such as abundant sources, biological degradation, no secondary contamination and facile modification. In this work, we prepared modified chitosan flocculants with double electrical behavior via polymerizing chitosan, acrylamide and sodium carboxymethyl cellulose together by using ammonium persulfate as the indicator in water. The product is a comb-type of chitosan copolymer and a polymeric ampholyte. And then we studied the product by FTIR, UV-Vis, TG, DSC spectrometeries and viscometry, etc. We also performed CACM′s water treat experiment. The effects of pH values, reaction time and dose of the new floccalant on treating various of waste water have been investigated, too.

关 键 词：Organic flocculant CHITOSAN ACRYLAMIDE COPOLYMER 

分 类 号：O636.1[理学—高分子化学]