改性壳聚糖高分子絮凝剂的制备与絮凝应用  

Preparation of Friend-Environmently Polymeric Flocculant of Modified Chitosan and Its Application

作　　者：李永峰[1] 刘琨[1,2] 徐菁利[1] 张伟华[1] 耿海俊[1] 

机构地区：[1]上海工程技术大学化学化工学院,上海201620 [2]东北林业大学林学院,黑龙江哈尔滨150040

出　　处：《上海化工》2010年第8期1-5,共5页Shanghai Chemical Industry

基　　金：国家高技术研究发展计划(863)项目(No.2006AA05Z109);上海市重点科技攻关项目(No.071605122)

摘　　要：以壳聚糖为原料,选用Ce4+-S2O82-复合引发体系作为接枝共聚反应的引发剂,采用水溶液聚合法接枝丙烯酰胺制备环保型高分子絮凝剂。研究引发剂配比对接枝共聚反应的影响。研究结果表明:Ce4+∶S2O82-=5∶75时所制备接枝物的接枝率和单体转化率最好,并且通过絮凝实验,发现不同投加量的壳聚糖-丙烯酰胺接枝共聚物对废水试样的絮凝效果不同。Chitosan was studied as base material grafting acryl-amide.Ce^4＋-S2O8^2- compound initiation system was seected to prepare with friend-environmently polymeric flocculant by solution polymerization. This experument studied mainly the influence to the reaction about the different compounding proportion of inititation. It was showed that the highest graft rate and monomer percent conversion were achieved with allocated proportion initiator of 5：75.By flocculation experiment, it was found that the flocculanting properties of waste sample were different by adding different amount of graft copolymer.

关 键 词：壳聚糖 丙烯酰胺 接枝共聚物 引发剂 絮凝实验 

分 类 号：O636[理学—高分子化学]