Macromolecular Research

The Polymer Society of Korea (한국고분자학회)
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Monodisperse Micrometer-Ranged Poly(methyl methacrylate) Hybrid Particles Coated with a Uniform Silica Layer

  • Han, Seung-Jin (Division of Chemical Engineering, College of Engineering, Hanyang University) ;
  • Shin, Kyo-Min (Division of Chemical Engineering, College of Engineering, Hanyang University) ;
  • Suh, Kyung-Do (Division of Chemical Engineering, College of Engineering, Hanyang University) ;
  • Ryu, Jee-Hyun (Display Materials Team (CR), Cheil Industries Inc.)
  • Published : 2008.07.31
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Abstract

Monodisperse, micron-sized, hybrid particles having a core-shell structure were prepared by coating the surface of poly(methyl methacrylate)(PMMA) microspheres with silica and by copolymerizing acrylamide (AAm) to supply the hydrogen bonding effect by means of the amide groups. Tetraethoxysilane (TEOS) was then slowly dropped onto the medium under certain conditions. Because of the hydrogen bonding between the amide of the PMMA particles and the hydroxyl group of the hydrolyzed silanol, a silica shell was generated on the PMMA core particles. The morphology of the hybrid particles was investigated with transmission (TEM) and scanning (SEM) electron microscopy as a function of the medium conditions and the amount of TEOS. Improved thermal properties were observed by TGA analysis.

Keywords

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