摘要
研究了以过硫酸铵—亚硫酸氢钠为引发剂的木薯淀粉与丙烯酸接枝共聚反应.对影响接枝率和接枝效率的各反应条件进行了考察,得出反应的最佳条件为:丙烯酸淀粉(质量比)=41;过硫酸铵淀粉(质量比)=1.5%1;过硫酸铵亚硫酸氢钠(摩尔比)=31;单体中和度为70%,反应温度为35℃,反应时间为3h.此时,接枝率为19.9%,接枝效率为78.4%.
Graft polymerization of acrylic acid and cassava starch was studied by using ammonium persulfate-sodium bisulfate as initiator. The reaction conditions affecting the graft rate and graft efficiency were investigated. The optimal reaction conditions were as follows： acrylic acid： starch（mass ratio）=4：1; ammonium persulfate： starch （mass ratio）=1.5%：1; ammonium persulfate： sodium bisufite（mole ratio）=3 ： 1; the neutral degree of monomer was 70%; reaction temperature was 35℃; reaction time was 3h; the graft rate was 19.9%;and the graft efficiency was 78.4%.
出处
《五邑大学学报（自然科学版）》
CAS
2006年第2期67-70,78,共5页
Journal of Wuyi University(Natural Science Edition)
基金
江门市科技计划资助项目[江财企(2004)59号]
关键词
淀粉
丙烯酸
过硫酸铵-亚硫酸氢钠
接枝共聚
starch
acrylic acid
ammonium persulfate-sodium bisufite
graft polymerization
