夺氢型光引发剂制备淀粉接枝共聚物的研究  

Preparation of Starch-Based Graft Polymers via Norrish II Photo Initiator

作　　者：楚晖娟[1] 刘晓倩[1] 祝红征 魏宏亮[1] 朱靖[1] 

机构地区：[1]河南工业大学化学化工学院,郑州450001

出　　处：《中州大学学报》2015年第1期110-112,共3页Journal of Zhongzhou University

基　　金：河南省科技厅重点科技攻关计划(102102210131);河南省教育厅自然科学研究计划(2010A430002);郑州市科技项目(7-15)

摘　　要：以二苯甲酮为光引发剂,通过光引发聚合制备淀粉-丙烯酸丁酯接枝共聚物。分别用红外光谱和偏光显微镜表征了接枝共聚物的化学结构和形态结构,考察反应时间、引发剂用量和单体用量对接枝反应的影响。结果表明,夺氢型光引发剂能有效地提高单体的接枝率和接枝效率,但随着引发剂用量和单体用量的增加,接枝效率会略有下降。Starch-butyl acrylate graft polymers are synthesized via photo-initiated polymerization in dimethyl sulfoxide solution,using benzophenone as photo initiator. The chemical and morphologic structures of the graft polymers are measured by FTIR and polarizing microscope. The effects of reactive time,the contents of initiator and monomer on graft ratio and graft efficiency are studied. Results show that Norrish II photo initiator could increase the graft ratio and graft efficiency of the monomers,but graft efficiency could decline a little when the contents of initiator and monomer increased.

关 键 词：光引发剂 淀粉 二苯甲酮 接枝聚合 丙烯酸丁酯 

分 类 号：TB34[一般工业技术—材料科学与工程]