丙烯腈在木薯淀粉上接枝共聚的研究  

GRAFT COPOLYMERIZATION OF ACRYLONITRILE ONTO CASSAVA STARCH

作　　者：谢文磊[1] 吴平格[1] 梁志德[1] 陈义勤[1] 高元功 

机构地区：[1]郑州粮食学院油脂工程系,郑州粮食学院基础部

出　　处：《郑州粮食学院学报》1995年第2期54-61,共8页Journal of Zhengzhou Institute of Technology

摘　　要：研究了木薯淀粉经糊化后，以硝酸铈铵为引发剂，在酸性介质中与丙烯腈的接枝共聚。考察了反应温度、单体浓度、引发剂用量、反应时间、糊化温度和不同淀粉等对接枝共聚反应的影响。推导并验证了反应初期的动力学模型，结合实验事实，探讨了接枝共聚机理。Graft copolymerization of acrylonitrile onto the gelatinized cassava starch wasmade by using ceric ammonium nitrate as initiator in acid solution,It was shown that graftefficiency and graft percentage was considerably affectde by initiator and monomer concentrations,reaction time and reaction temperature aiid some other factors.The characteristic ab-sorption peaks of starch and polyacrylonitril are apparent in the infrared spektrum of graftcopolymer. For the sake of contrasting,graft copolymerization of aome other starches likecorn stach, cross0900904─linked starch and oxidized starch was also studied and the kinetics modelof grafting reaction was examined。

关 键 词：淀粉 接枝共聚 丙烯腈 动力学 机理 

分 类 号：TS236.9[轻工技术与工程—粮食、油脂及植物蛋白工程]