摘要
将姜黄素与2-溴异丁酰溴(EBi B-Br)通过酰基化反应引入溴原子制备含溴姜黄素衍生物(Br-Curcumin-Br),然后再以Br-Curcumin-Br为引发剂、Cu Br/Bpy(2,2’-联吡啶)为催化剂引发甲基丙烯酸甲酯(MMA)进行原子转移自由基聚合。考察了此聚合反应过程中MMA的转化率以及聚合物分子量随时间的关系,分子量及分子量分布随转化率的关系。研究结果表明:聚合物转化率和分子量都随时间增加呈线性增加,分子量随MMA转化率增加也呈线性增加,而且不同聚合物的分子量分布比较窄(PDI<2)。
A Curcumin-based initiator（Br-Curcumin-Br） was synthesized with curcumin and 2-bromoisobutyryl bromide by acylation reaction, then the atom transfer radical polymerization of methyl methacrylate（MMA） was catalyzed by Cu Br/Bpy with Br-Curcumin-Br as initiator. The variation of monomer conversion and the molecular weight with reaction time and that of molecular weight and molecular weight distribution with monomer conversion were investigated. The results showed that the monomer conversion and the molecular weight increased linearly with reaction time, and the molecular weight increased linearly with monomer conversion,and the obtained polymers had a narrow molecular weight distribution.
出处
《浙江化工》
CAS
2015年第2期35-39,共5页
Zhejiang Chemical Industry
