Preparation method of opal-structure polymer photonic crystal

A technology for structural polymers and photonic crystals, which is applied in crystal growth, chemical instruments and methods, single crystal growth, etc. It can solve the problems of limited application fields, impure products, complicated feeding and heating program control, etc., and achieve a wide range of applications. Foreground effect

Active Publication Date: 2013-11-27
XIAMEN UNIV
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  • Abstract
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Problems solved by technology

[0004] In the patent literature, Wang Jingxia et al. (CN200510011219.2) prepared a full-color colloidal photonic crystal film using hard-core-soft-shell polymer latex particles, but the polymer latex particles are prepared using three monomers, and the feeding and heating program control is complicated. , and the introduction of emulsifiers and pH buf

Method used

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  • Preparation method of opal-structure polymer photonic crystal
  • Preparation method of opal-structure polymer photonic crystal
  • Preparation method of opal-structure polymer photonic crystal

Examples

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Example Embodiment

[0024] Example 1:

[0025] Add 0.6 mL of the hydrophilic monomer glycidyl methacrylate and 2 mL of the hydrophobic monomer styrene into a three-necked flask containing 40 mL of deionized water and stir with nitrogen for 10 minutes, and then add an aqueous solution containing 0.08 g of potassium persulfate initiator. Continue to ventilate nitrogen, increase the temperature to 80°C, and react for 12 hours to obtain a monodisperse styrene copolymer glycidyl methacrylate (PS-PGMA) microsphere emulsion.

[0026] At room temperature, smear the obtained monodisperse PS-PGMA polymer microsphere emulsion on a glass slide, and after the water evaporates naturally, a photonic crystal with unique color opal structure can be obtained.

Example

[0027] Examples 2 to 6: The same process conditions as in Example 1, changing the amount of hydrophilic monomer glycidyl methacrylate added to synthesize monodisperse styrene copolymer glycidyl methacrylate (PS-PGMA) with different particle sizes ) Microsphere emulsion, the results are shown in Table 1.

[0028] At room temperature, the monodisperse PS-PGMA polymer microsphere emulsion obtained in Examples 2 to 8 was smeared on a glass slide, and after the water evaporates naturally, a photonic crystal with unique color opal structure can be obtained.

[0029] Table 1

[0030]

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Abstract

The invention relates to a preparation method of an opal-structure polymer photonic crystal, and belongs to the technical field of colloid photonic crystal. The invention especially relates to a method for preparing the opal-structure polymer photonic crystal with a solvent evaporation self-assembly method by using mono-dispersed core-shell polymer microspheres. According to the invention, the mono-dispersed core-shell polymer microspheres are prepared with a soap-free emulsion polymerization method. Under normal temperature and normal pressure, the microsphere emulsion is coated on a flat-plate base. With the evaporation of water solvent, the microspheres are subjected to self-assembly, and the ordered opal-structure polymer photonic crystals are automatically grown.

Description

technical field [0001] The invention relates to a method for preparing an opal structure polymer photonic crystal, in particular to a method for preparing an opal structure polymer photonic crystal by volatilizing and self-assembling a core-shell structure polymer microsphere solvent. Background technique [0002] In 1987, Yab lonovit (Yablonovitch E., Phys. Rev. Lett., 1987, 58:2059-2062.) and John (John S., Phys. Rev. Lett., 1987, 58: 2486-2489.) respectively Independently proposed the concept of Photonic Crystal. In the nearly 30 years since then, due to the large enough difference in the dielectric constant in the potential field of photonic crystals, Bragg diffraction occurs at the dielectric interface, resulting in the emergence of photonic band gaps that enable light to propagate and disperse, thus generating many new technologies. Physical phenomena, such as superprism phenomenon, negative refractive index medium effect, etc., have aroused great attention of researc...

Claims

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Application Information

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IPC IPC(8): C30B29/58C08F212/08C08F220/32C08F2/22C08J3/24
Inventor 戴李宗余世荣袁丛辉张龙钟丽娜苏瑞阳王爽许一婷曾碧榕罗伟昂
Owner XIAMEN UNIV
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