One step preparation of spherical silicon resins from immiscible reaction mixtures

Dayun Lee, Young A. Kim, Young Baek Kim, Jun Kyu Kim, Yang-Kyoo Han

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Spheres of silicon resins with different compositions were prepared in one-step reaction from mixtures of water and water-insoluble precursors of polysiloxanes (PSO) and polysilsesquioxanes (PSQ) using different amines as catalysts. The presence of PSO and PSQ in the spheres was confirmed by their mechanical properties and FTIR spectroscopy. Spheres of pure PSO were obtained from only dimethoxymethylvinylsiloxane (DMMVS) and 3- mercaptopropylmethyldimethoxysilan (MPMDMS) when the reaction was induced with appropriate catalysts. DMMVS and MPMDMS always gave the most promising results regarding the formation of discrete solid spheres with the minimum tendency to form monolithic solids or fluid-like, premature products. The spheres were characterized by optical microscopy, scanning electron microscopy (SEM), and Fourier transform infrared (FTIR) spectroscopy. The mixtures containing larger amounts of PSO precursors commonly gave lower yields and softer spheres.

Original languageEnglish
Pages (from-to)353-359
Number of pages7
JournalMacromolecular Research
Volume16
Issue number4
DOIs
StatePublished - 2008 Jan 1

Fingerprint

Silicon
Siloxanes
Resins
Silicones
Fourier transform infrared spectroscopy
Catalysts
Water
Optical microscopy
Amines
Mechanical properties
Scanning electron microscopy
Fluids
Chemical analysis

Keywords

  • One-pot preparation
  • Polysiloxane
  • Polysilsesquioxane
  • Silicon resins
  • Spheres

Cite this

Lee, Dayun ; Kim, Young A. ; Kim, Young Baek ; Kim, Jun Kyu ; Han, Yang-Kyoo. / One step preparation of spherical silicon resins from immiscible reaction mixtures. In: Macromolecular Research. 2008 ; Vol. 16, No. 4. pp. 353-359.
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One step preparation of spherical silicon resins from immiscible reaction mixtures. / Lee, Dayun; Kim, Young A.; Kim, Young Baek; Kim, Jun Kyu; Han, Yang-Kyoo.

In: Macromolecular Research, Vol. 16, No. 4, 01.01.2008, p. 353-359.

Research output: Contribution to journalArticle

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AU - Kim, Young A.

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