Synthesis of Polymeric Dental Restorative Composite Filled with Hydrophobic Silica Nanoparticle

소수성의 실리카 나노입자가 충진된 치아수복용 고분자 복합체 제조

  • Han, Sanghyuk (Department of Polymer Science & Engineering, Dankook University) ;
  • Seo, Kitaek (Department of Polymer Science & Engineering, Dankook University) ;
  • Ma, Seung Jae (Department of Polymer Science & Engineering, Dankook University) ;
  • Lim, Sang Myung (Department of Polymer Science & Engineering, Dankook University) ;
  • Kim, Ohyoung (Department of Polymer Science & Engineering, Dankook University)
  • 한상혁 (단국대학교 공과대학 고분자공학전공) ;
  • 서기택 (단국대학교 공과대학 고분자공학전공) ;
  • 마승재 (단국대학교 공과대학 고분자공학전공) ;
  • 임상명 (단국대학교 공과대학 고분자공학전공) ;
  • 김오영 (단국대학교 공과대학 고분자공학전공)
  • Received : 2006.05.30
  • Accepted : 2006.06.15
  • Published : 2006.08.10

Abstract

To enhance the dental properties of polymeric dental restorative composite activated by visible-light, the surface of hydrophilic silica nanoparticle was hydrophobically treated using $\gamma$-methacryloxypropyltrimethoxysilane ($\gamma$-MPS) coupling agent. Structural properties and dispersity of silica in the composite was compared with the hydrophobicity of silica. Polymerization characteristic of the composite was also evaluated. Degree of hydrophobicity of silica nanoparticle was considerably improved with an increase of $\gamma$-MPS upto 40 wt% and converged asymptotically. Additionally, with an increase of the hydrophobicity of silica nanoparticle, the dispersity of silica was improved and the residual monomer in the composite was not detected from nuclear magnetic resonance experiment which indicated superior polymerization behavior.

Acknowledgement

Supported by : 한국과학재단

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