过氧化氢-硫脲引发丙烯酰胺与玉米淀粉接枝共聚反应规律的研究——乙烯基类单体与淀粉的接枝共聚反应(Ⅷ)  

Studies on the Regularity of Graft Copolymerization of Acrylamide onto Gorn Starch by H_2O_2-TU Initiation System ——Graft Copolymerization of Vigyl Monomers onto Starch(Ⅷ)

作　　者：巫拱生[1] 鲁德忠[1] 胡应模[1] 孙艳霞[1] 

机构地区：[1]吉林大学化学系高分子化学教研室

出　　处：《吉林大学自然科学学报》1989年第1期81-85,共5页Acta Scientiarum Naturalium Universitatis Jilinensis

摘　　要：以H_2O_2-硫脲(TU)氧化还原引发体系,研究了丙烯酰胺与玉米淀粉的接枝共聚反应规律。实验结果表明,当〔H_2O_2〕=1.60×10^(-3)mol/L、〔TU〕=8.0×10^(-4)mol/L、〔AM〕=1.0 mol/L,pH=5,45℃反应5h,单体转化率、接枝率和接枝效率都较高。In this paper, we report the graft copolymerization of acrylamide onto corn starch by Fe(Ⅱ)/H_2O_2 initiation. The IR spectra of reaction product present absorptions at 1650cm^(-1), 750cm^(-1), and 570cm^(-1). Though the comparison from curves 1,2 and 3 the reaction product is starch-graft-poly (acrylamide). Our results showed that the percent grafting (G) and grafting efficiency were considerably affected by [Fe^(2+)],[H_2O_2], temperature, monomers and time.We found that the S-G-PAM can be useb as flocculant to treat petroliferous waste water and satisfactory result was obtained.

关 键 词：丙烯酰胺 淀粉 接枝共聚反应 

分 类 号：O632.63[理学—高分子化学]