Ionic liquid mediated synthesis of poly(2-hydroxyethyl methacrylate-block-methyl methacrylate)/Fe3O4 core–shell structured nanocomposite by ATRP method

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• 作者：Van Chinh Tran ; Van Hoa Nguyen ; Dirk Tuma ; Jae-Jin Shim
• 关键词：Nanocomposite ; Block copolymer ; Fe3O4 nanoparticles ; Ionic liquid ; ATRP
• 刊名：Colloid & Polymer Science
• 出版年：2016
• 出版时间：April 2016
• 年：2016
• 卷：294
• 期：4
• 页码：777-785
• 全文大小：775 KB
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• 作者单位：Van Chinh Tran (1)
  Van Hoa Nguyen (1) (2)
  Dirk Tuma (3)
  Jae-Jin Shim (1)
  
  1. School of Chemical Engineering, Yeungnam University, Gyeongsan, Gyeongbuk, 712-749, Republic of Korea
  2. Department of Chemistry, Nha Trang University, 2 Nguyen Dinh Chieu, Nha Trang, Vietnam
  3. BAM Federal Institute for Materials Research and Testing, Richard-Willstätter-Str. 11, 12489, Berlin, Germany
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Polymer Sciences
  Physical Chemistry
  Soft Matter and Complex Fluids
  Characterization and Evaluation Materials
  Food Science
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1435-1536

文摘

A hybrid nanocomposite of magnetic nanoparticles (Fe₃O₄) and poly(2-hydroxyethyl methacrylate)-block-poly(methyl methacrylate) (PHEMA-b-PMMA) was synthesized successfully by the atom transfer radical polymerization (ATRP) in an ionic liquid (IL), 1-butyl-3-methylimidazolium hexafluorophosphate ([Bmim]PF₆). Fe₃O₄ nanoparticles were first surface-modified with the initiator, 2-bromoisobutyryl bromide (BiBBr), in dimethylformamide (DMF) solvent, which produced the macro-initiator, Fe₃O₄-BiB, to initiate the polymerization reactions for the synthesis of the block polymer, PHEMA-b-PMMA. After immobilizing the initiator on the surface of Fe₃O₄, the block polymer chains were grafted successfully onto the Fe₃O₄ surface, causing the formation of a core-shell nanostructure. The incorporation of Fe₃O₄ in the nanocomposite was confirmed by attenuated total reflectance-Fourier transform infrared spectroscopy, X-ray diffraction, transmission electron microscopy, thermogravimetric analysis, and X-ray photoelectron spectroscopy. The thermal stability and magnetic properties increased with increasing amount of Fe₃O₄ in the nanocomposite.