^(60)Coγ射线预辐照制备淀粉-丙烯酰胺接枝物  

GRAFTING OF STARCH-ACRYLAMIDE BY ^(60)Co γ RAY PRE-IRRADIATION-EFFECT OF VARIOUS CONDITIONS ON GRAFTING

作　　者：包华影[1] 贾海顺[1] 曲国翠 刘远霞[1] 

机构地区：[1]北京师范大学化学系,北京100875

出　　处：《辐射研究与辐射工艺学报》2000年第4期263-267,共5页Journal of Radiation Research and Radiation Processing

基　　金：国家教育部重点项目

摘　　要：采用预辐照的方法研究了淀粉与丙烯酰胺的接枝反应，制备出了淀粉与丙烯酰胺的接枝物；采用元素分析法测量了接枝率。对预辐照接枝反应的一些影响因素，如吸收剂量、反应温度、反应时间、阻聚剂及辐照后效应也进行了研究，并获得了相关结果。淀粉预辐照的吸收剂量约１０ｋＧｙ，辐照后 １０ｍｉｎ内在 ２５～３０℃下进行接枝可以获得 ８０％以上的接枝率。In present paper, the grafting reaction of starch-acrylamide by 60Co γ pre- irradiation was carried out. The grafted copolymer was prepared and identified by IR spectropho- tometer. The grafting yield was measured with element analysis. Various influence factors such as absorbed dose, reaction temperature, reaction duration, post-irradiation effect etc. on grafting yield were studied. The grafting yield higher than 80% could be obtained when the grafting reaction was proceeded at 25-30℃ within 10minutes after 10kGy irradiation.

关 键 词：预辐照 淀粉-丙烯酰胺 接枝反应 絮凝剂 钴60 

分 类 号：TQ314.253[化学工程—高聚物工业]