Journal of Adhesion and Interface (접착 및 계면)

The Society of Adhesion and Interface, Korea (한국접착및계면학회)
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Syntheses of Mesoporous Silica Hollow Spheres Using Polystyrene Template

폴리스티렌 주형 중공형 중간세공 나노 입자의 합성

  • Chu, Sang-Wook (Department of Polymer Science and Engineering, Pusan National University) ;
  • Sung, A-Reum (Department of Polymer Science and Engineering, Pusan National University) ;
  • Park, Sung Soo (Department of Polymer Science and Engineering, Pusan National University) ;
  • Ha, Chang-Sik (Department of Polymer Science and Engineering, Pusan National University)
  • 추상욱 (부산대학교 고분자공학과) ;
  • 성아름 (부산대학교 고분자공학과) ;
  • 박성수 (부산대학교 고분자공학과) ;
  • 하창식 (부산대학교 고분자공학과)
  • Received : 2012.08.28
  • Accepted : 2012.11.30
  • Published : 2012.12.31
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Abstract

In the present study, we synthesized mesoporous silica hollow spheres with different wall thickness using polystyrene (PS) spheres as a structure template, tetraethoxysilane (TEOS) as a silica source, cetyltrimethylammonium bromide (CTAB) as a template. Particle size and dispersion of PS spheres were strongly depended on the concentration of surfactant in the aqueous solutions. The size of PS spheres was increased with decreasing concentration of surfactants. Dispersion of PS particle was improved when the surfactant concentration was lower than 0.5 g of surfactant.

본 연구에서는 중공형 나노 입자의 구조체가 되는 구형 폴리스티렌을 조절된 유화중합법으로 여러 크기의 구형 폴리스티렌을 제조하는 연구를 수행하였다. 유화중합에 사용되는 유화제의 농도를 조절하여 구형 폴리스티렌의 크기를 임의로 조절하였다. 이 폴리스티렌을 구조체로 이용하여 중공형 중간세공 실리카를 합성하였으며, 합성 과정 시 반응속도의 조절을 위해 에탄올을 넣어 실리카 전구체의 가수분해 속도를 조절하고, 실리카 전구체의 투여량을 조절하여 중공형 중간세공 실리카의 벽 두께를 조절하였다.

Keywords

Acknowledgement

Grant : 도약연구

Supported by : 한국연구재단

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