甲基丙烯酸二甲氨基乙酯的ATRP聚合  

ATRP polymerization of dimethylaminoethyl methacrylate

作　　者：杨龙花 张禄练 宝利军 谢广帆 彭小琼 毕韵梅[1] Yang Longhua;Zhang Lulian;Bao Lijun;Xie guangfan;Peng Xiaoqiong;Bi Yunmei(College of Chemistry,Yunnan Normal University,Yunnan Kunming 650500,China)

机构地区：[1]云南师范大学化学化工学院,云南昆明650500

出　　处：《云南化工》2022年第5期31-33,共3页Yunnan Chemical Technology

基　　金：国家自然科学基金项目(No:21564017)。

摘　　要：以2-溴异丁酸乙酯为引发剂,CuBr为催化剂,对甲基丙烯酸二甲氨基乙酯(DMAEMA)的原子转移自由基聚合(ATRP)进行了研究。探究了以N,N,N′,N″,N″-五甲基二乙烯基三胺(PMDETA)和2,2′-联吡啶(bpy)两种配体,以及本体聚合和溶液聚合对聚合反应的影响。用核磁共振氢谱(^(1)H NMR)对聚合产物的结构进行了表征,用凝胶渗透色谱(GPC)比较了聚合产物的相对分子质量和相对分子质量分布指数(PDI)。结果表明,在bpy/CuBr催化条件下,采用溶液聚合得到的产物GPC曲线呈对称分布,相对分子质量分布较窄。ATRP polymerization of dimethylaminoethyl methacrylate(DMAEMA)was studied using ethyl 2-bromoisobutyrate as an initiator and CuBr as a catalyst.The effects of two ligands N,N,N′,N″,N″-pentamethyldiethylenetriamine(PMDETA)and 2,2′-bipyridine(bpy),bulk and solution polymerization on the polymerization were investigated.The structure of the product was characterized by 1H NMR spectra,and the molecular weight and molecular weight distribution of the product were compared with gel permeation chromatography(GPC).The results showed that under the catalysis of bpy/CuBr,the GPC curve of the product obtained by solution polymerization showed symmetrically monomodal peaks with narrow molecular weight distribution.

关 键 词：甲基丙烯酸二甲氨基乙酯 原子转移自由基聚合 配体 本体聚合 溶液聚合 

分 类 号：O63[理学—高分子化学]