Preparation of Silica Microcapsules by Sol-Gel Method in W/O Emulsion.

• Ono Hideo

  Nihon Millipore Co. Ltd.

• Takahashi Koji

  Department of Materials Science and Engineering, Yamagata University

Bibliographic Information

Other Title

• Preparation of Silica Microcapsules by

Abstract

Spherical silica microcapsules whose average diameter was 3.6 μm were synthesized by the sol-gel method in W/O emulsions containing an anionic surfactant at a high water to surfactant molar ratio. Special agitational conditions are needed to prepare spherical silica microcapsules. The properties of the resulting silica microcapsules were determined by Fourier-transform infrared spectroscopy and scanning electron microscopy. As the spherical silica particles have a hollow core structure, hydrolysis and condensation of TEOS occur at the micellar periphery, and the diameter of the water droplets in the W/O emulsion at a high water to surfactant molar ratio (Wo) are micron sized.

Journal

• JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

  JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 31 (5), 808-812, 1998

  The Society of Chemical Engineers, Japan

Keywords

• Silica
• W/O Emulsion
• AOT
• Microcapsule
• Agitation

Details

• CRID: 1390001204564968576
• NII Article ID: 10002066478
• NII Book ID: AA00709658
• DOI: 10.1252/jcej.31.808
• COI: 1:CAS:528:DyaK1cXntFWqtrs%3D
• ISSN: 18811299
• ISSN: 00219592
• NDL BIB ID: 4588688
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4588688
• Web Site: http://www.jstage.jst.go.jp/article/jcej/31/5/31_5_808/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed