高等学校化学学报 ›› 2005, Vol. 26 ›› Issue (8): 1570.

• 研究论文 • 上一篇    下一篇

FeBr3/Me6TREN催化MMA反向原子转移自由基聚合研究

李忠辉, 张永明, 刘燕飞, 薛敏钊, 刘燕刚   

  1. 上海交通大学化学化工学院, 上海200240
  • 收稿日期:2004-07-06 出版日期:2005-08-10 发布日期:2005-08-10
  • 通讯作者: 张永明(1960年出生)男,博士,副教授,主要从事(含氟)功能高分子材料研究.E-mail:ymzhang@sjtu.edu.cn E-mail:ymzhang@sjtu.edu.cn

Reverse Atom Transfer Radical Polymerization of MMA Catalyzed by FeBr3/Me-6TREN

LI Zhong-Hui, ZHANG Yong-Ming, LIU Yan-Fei, XUE Min-Zhao, LIU Yan-Gang   

  1. College of Chemistry and Chemical Engineering, Shanghai Jiaotong University, Shanghai 200240, China
  • Received:2004-07-06 Online:2005-08-10 Published:2005-08-10

摘要: 对FeBr3/Me6TREN催化的反向原子转移自由基聚合进行了研究.在不同的催化剂、引发剂的配比、聚合温度和配体用量等条件下,该催化体系催化的MMA聚合反应动力学为一级反应,聚合物分子量可控,分子量分布很窄,说明该体系催化的聚合反应为活性可控聚合.通过实验计算了反应的活化能,并利用UV光谱对催化剂进行了研究.

关键词: 原子转移自由基聚合(ATRP), 溴化铁, 三-(N, N-二甲基氨基乙基)胺

Abstract: The reverse atom transfer polymerization of MMA catalyzed by FeBr3/Me-6TREN was studied in this paper. The molecular weight increased with the increase of the conversion and was in a good agreement with the theoretical value. The molecular weight distribution of the resulted PMMA was very narrow(1.06). These results indicate that the polymerization was well-controlled. The effect of morlar ratio of catalyst to initiator and FeBr3 to ligand Me-6TREN on the control of the polymerization were studied. In addition, the activation energy of polymerization of MMA was calculated to be 29.35 kJ/mol, which was a bit smaller than that of Cl-mediated reverse ATRP.

Key words: Atom transfer radical polymerization(ATRP), FeBr3, Tris(N,N-dimethylaminoethyl)amine(Me-6TREN)

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