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Method for preparing silica particles containing a phthalocyanine derivative, said particles, and uses thereof

A technology of phthalocyanine derivatives and silicon dioxide, applied in chemical instruments and methods, organic chemistry, silicon organic compounds, etc., can solve problems such as packaging difficulties

Inactive Publication Date: 2012-08-15
COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Considering the remarkable and well-established hydrophobicity of phthalocyanine-based materials, it is very difficult to encapsulate them in silica nanoobjects by using conventional methods that undergo a wet process.

Method used

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  • Method for preparing silica particles containing a phthalocyanine derivative, said particles, and uses thereof
  • Method for preparing silica particles containing a phthalocyanine derivative, said particles, and uses thereof
  • Method for preparing silica particles containing a phthalocyanine derivative, said particles, and uses thereof

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Embodiment Construction

[0116] I. A method for the preparation of silica nanoparticles according to the invention.

[0117] A solution was prepared by adding the following chemicals in the following order (solution M according to the invention 1 ): surfactant Triton X100 (2.1 mL), co-surfactant n-hexanol (2.05 mL), cyclohexane organic solvent (9.38 mL). The solution was then stirred at room temperature for 15 min.

[0118] Then, a phthalocyanine derivative of silica in THF solution, which is 2,3-naphthalocyanine-silane dihydroxide (2,3-naphthalocyanine-silane dihydroxide) or "silicon 2,3-naphthalenephthalein "Silicon 2,3-naphthalocyanine dihydroxide" (100μL, 0.1M in THF, M=774.88g·mol -1 , n=10 -5 mol), followed by the addition of water (0.5 mL).

[0119] TEOS (tetraethoxysilane, 125 μL, 5.6x10 -4 mol, d=0.934, M=208.33gmol -1 ) Silicon derivatives are injected into the emulsion. The resulting emulsion was stirred at room temperature for 30 min. Hydrolysis of TEOS was initiated by adding 25...

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Abstract

The present invention relates to a method for preparing a silica particle including at least one phthalocyanine derivative, said particle being prepared from at least one silicon phthalocyanine derivative via reverse microemulsion, to said silica particles, and to the uses thereof.

Description

technical field [0001] The present invention relates to the field of silica particles and in particular silica nanoparticles comprising silica phthalocyanine type dyes. [0002] Specifically, the object of the present invention is a process for the preparation of silica particles comprising phthalocyanine and naphthalocyanine derivatives. It also relates to silica particles comprising phthalocyanine and naphthalocyanine derivatives which can be prepared by this method, and their different uses and applications. Background technique [0003] The synthesis and properties of dyes derived from complexes of silica phthalocyanine or naphthalocyanine with axial ligands have been reported in Kenney [1], Joyner [2] and Esposito [3] described in the literature. In recent years, there has been considerable interest in the physical and chemical properties of phthalocyanines. Part of this interest stems from their possible applications in various fields, such as electrophotography [4]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F7/00C07F7/10C09B47/08G03G9/09C07D487/22C07F7/02
CPCC07D487/22C09B69/008C09B69/108G03G9/0918G03G9/09725Y10T428/2982
Inventor 奥雷利安·奥热
Owner COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
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