不同引发体系对魔芋粉与丙烯酸接枝共聚反应的影响研究

Studies of some initiators in graft polymerization of acrylic acid onto konjac glucomannan

研究以硝酸铈铵、过硫酸钾、过硫酸钾-亚硫酸氢钠为引发剂的魔芋粉与丙烯酸接枝共聚体系.对引发剂浓度、反应温度、单体浓度、单体中和度、反应时间等反应条件进行了考察,并比较了以硝酸铈铵、过硫酸钾、过硫酸钾-亚硫酸氢钠为不同引发体系的魔芋粉与丙烯酸接枝共聚反应,实验表明以过硫酸钾-亚硫酸氢钠为引发剂的引发效果最佳.

Graft polymerization of acrylic acid onto konjac glucomannan using ceric ammoniumnitrate, potassium persulfate and potassium persulfate-sodium bisulfate as initiators is studied. Reaction conditions of graft polymerization such as concentration of initiators, reaction temperature, concentration and degree of neutralization of monomer and reaction time are investigated. The results obtained from graft polymerization of acrylic acid onto konjac glucomannan initiated with ceric ammonium nitrate, and potassium persulfate, and potassium persulfate-sodium bisulfate are compared. The best result is using ammonium persulfate-sodium bisulfate.