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化学学报
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化学学报 ›› 2011, Vol. 69 ›› Issue (18): 2166-2172. 上一篇    下一篇

研究论文

原子转移自由基聚合与“Click”反应相结合制备Fe3O4@SiO2-g-PDMAEMA及其性质研究

张世华，朱汇雯，张明祖，倪沛红*   

  1. (江苏省先进功能高分子材料设计及应用重点实验室 苏州大学材料与化学化工学部高分子科学与工程系
    苏州 215123)
  • 投稿日期:2011-05-03 修回日期:2011-05-15 发布日期:2011-05-20
  • 通讯作者: 倪沛红 E-mail:phni@suda.edu.cn
  • 基金资助:

    国家自然科学基金

Synthesis and Properties of Fe3O4@SiO2-g-PDMAEMA Prepared via Combination of Atom Transfer Radical Polymerization and “Click” Reaction

ZHANG Shi-Hua, ZHU Hui-Wen, ZHANG Ming-Zu, NI Pei-Hong   

  1. (Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123)
  • Received:2011-05-03 Revised:2011-05-15 Published:2011-05-20
  • Contact: Pei-Hong NI E-mail:phni@suda.edu.cn

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结合原子转移自由基聚合(ATRP)与点击反应(“Click” reaction), 在SiO2包裹的Fe3O4磁性纳米粒子(Fe3O4@SiO2)表面接枝聚[甲基丙烯酸-2-(N,N-二甲氨基)乙酯](PDMAEMA), 得到了表面接枝PDMAEMA的磁性纳米粒子(Fe3O4@SiO2-g-PDMAEMA). 通过1H NMR和GPC测试, 研究炔基封端的PDMAEMA的结构、分子量及分子量分布. 通过透射电镜(TEM)、红外光谱(FT-IR)、热重分析(TGA)、动态光散射(DLS)和Zeta电位测试, 研究了Fe3O4@SiO2和Fe3O4@SiO2-g-PDMAEMA的结构、形貌、粒径及表面性质.

关键词: ATRP, “Click” 反应, 表面接枝, 甲基丙烯酸-2-(N,N-二甲氨基)乙酯, SiO2, 磁性纳米粒子

Poly[2-(N,N-dimethylamino)ethyl methacrylate] (PDMAEMA) was prepared and grafted onto Fe3O4 magnetic nanoparticles encapsulated with SiO2 (Fe3O4@SiO2) via combination of ATRP and “Click” reaction. So the magnetic nanoparticles grafted with PDMAEMA (Fe3O4@SiO2-g-PDMAEMA) on the surface were obtained. 1H NMR and GPC tests were carried out to study the structure, molecular weight and polydispersity index (PDI) of alkynyl-capped PDMAEMA. TEM, FT-IR, TGA, DLS and Zeta potential tests were used to study the structures, morphologies, particle diameters and surface properties of Fe3O4@SiO2 and Fe3O4@SiO2-g-PDMAEMA, respectively.

Key words: ATRP, Click chemisty, surface graft, DMAEMA, SiO2, magnetic nanoparticles