Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

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
View PDF6 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 buffers into the polymerization system makes the final product polymer latex particles impure. During the process of water volatilization, the formation of colloidal crystals is interfered by various impurities, which affects the large size of the crystal film. is limited, and also due to the impurity of the product, its final application field is limited

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • 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

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

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

Embodiment 2～6

[0027] Embodiment 2~6: With the process condition of embodiment 1, change the addition amount of hydrophilic monomer glycidyl methacrylate, synthesize the monodisperse styrene copolymerized glycidyl methacrylate (PS-PGMA) of different particle size ) microsphere emulsion, the results are shown in Table 1.

[0028] At room temperature, apply the monodisperse PS-PGMA polymer microsphere emulsion obtained in Examples 2 to 8 on a glass slide, and wait for the water to evaporate naturally to obtain an opal-structured photonic crystal with a unique color.

[0029] Table 1

[0030]

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com