RAFT聚合法合成聚丙烯酰胺基偶氮苯的研究  

Synthesis of Poly(acrylamido-azobenzene) by RAFT Polymerization

作　　者：李光华[1] 汪春英[1] 聂良瑞[1] 王广东[1] 黄义忠[1] 

机构地区：[1]广西大学化学化工学院,广西石化资源加工及过程强化技术重点实验室,南宁530004

出　　处：《高分子通报》2013年第2期61-66,共6页Polymer Bulletin

基　　金：国家自然科学基金项目(21064001);广西石化资源加工及过程强化技术重点实验室主任基金项目(11-B-02)

摘　　要：以二硫代苯甲酸苄酯(BDTB)为链转移剂,偶氮二异丁腈(AIBN)为引发剂,丙烯酰胺基偶氮苯(AAAB)为单体,DMF为溶剂,利用可逆加成-断裂链转移(RAFT)聚合法合成了聚丙烯酰胺基偶氮苯(PAAAB),并考察了聚合温度和链转移剂浓度对聚合反应的影响。通过FT-IR、1 H-NMR、GPC等对链转移剂和聚合物结构进行了表征。结果表明:聚合反应动力学曲线呈良好的线性关系,分子量分布窄;随着[BDTB]/[AIBN]比例的增大,聚合速率和分子量下降,分子量分布变窄。In this paper, poly（aerylamido-azobenzene） （PAAAB） was synthesized by reversible addition-fragmentation chain transfer （RAFT） polymerization of acrylamido-azobenzene （AAAB） in DMF solvent, using benzyl dithiobenzoate （BDTB） as RAFT agent and a,a＇-azobis（isobutyronitrile） （AIBN） as initiator. The effects of reaction temperature and the concentration of BDTB on the polymerization of AAAB were investigated. The structures of BDTB and PAAAB were characterized by FT-IR, ^1H-NMR, and GPC. The results showed that the kinetic curves of the polymerization reveal good linear relationship, and the motecular weight distribution was narrower; when the ratio of [BDTB] to [AIBN] increases, the polymerization rate and molecular weight of PAAAB were decreased and the molecular weight distribution becomes narrow.

关 键 词：丙烯酰胺基偶氮苯 二硫代苯甲酸苄酯 RAFT聚合 合成 

分 类 号：O633.5[理学—高分子化学]