Polymer colloid photon crystal film with photon band-gap position at near infrared region and its preparing method and use

A colloidal photonic crystal and photonic band gap technology, applied in the direction of reflection/signal coating, can solve the problem of high cost, and achieve the effect of simple equipment, excellent order degree, and simple and easy method.

Inactive Publication Date: 2007-09-12
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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  • Polymer colloid photon crystal film with photon band-gap position at near infrared region and its preparing method and use
  • Polymer colloid photon crystal film with photon band-gap position at near infrared region and its preparing method and use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Embodiment 1: Preparation of monodisperse large particle size polymer latex particles

[0047] The monomer mixture methyl methacrylate (1 g), styrene (19 g), and methacrylic acid (1 g), pH buffer ammonium bicarbonate (0.2 g) and sodium chloride (0.2 g) were dispersed in In water (95 mL), the resulting mixed system was stirred and mixed at 350 rpm, and heated to 70°C. Add 15 milliliters of ammonium persulfate (0.2 gram is dissolved in 25 milliliters of water) aqueous solution and start to react, react and add 5 milliliters of ammonium persulfate aqueous solution again after 2 hours, all the other ammonium persulfate aqueous solutions add after continuing reaction 2 hours, After the reaction continued for 2 hours, the temperature was raised to 80° C. and the reaction was completed for another 2 hours. Finally, monodisperse large-diameter polymer latex particles with a monodispersity index less than or equal to 0.005 and a particle diameter range of 480 nm are obtained. ...

Embodiment 2

[0049] Embodiment 2: Preparation of monodisperse large particle size polymer latex particles

[0050] The monomer mixture vinyl acetate (0.5 g), butyl acrylate (0.5 g), methyl styrene (19 g), and acrylic acid (1 g), pH buffer sodium bicarbonate (0.1 g) and ammonium bicarbonate (0.1 g) and sodium chloride (0.2 g) were dispersed in water (95 mL), and the resulting mixed system was stirred and mixed at 300 rpm, and heated to 70°C. Add 15 milliliters of initiator (obtained by dissolving 0.2 gram of ammonium persulfate and 0.1 gram of sodium persulfate in 25 milliliters of water) aqueous solution to start the reaction, add 5 milliliters of ammonium persulfate aqueous solution after reacting for 2 hours, and the remaining persulfate The ammonium aqueous solution was added after the reaction was continued for 2 hours, and after the reaction was continued for 2 hours, the temperature was raised to 80° C. and the reaction was completed for another 2 hours. Finally, monodisperse large-...

Embodiment 3

[0052] Embodiment 3: Preparation of monodisperse large particle size polymer latex particles

[0053] The monomer mixture isobutyl methacrylate (1 g), styrene (19 g), acrylic acid (0.5 g) and acrylamide (0.5 g), pH buffer sodium bicarbonate (0.1 g) and ammonium hydrogen phosphate (0.1 g) and sodium chloride (0.2 g) were dispersed in water (95 mL), and the resulting mixed system was stirred and mixed at 400 rpm, and heated to 70°C. Add 15 milliliters of ammonium persulfate (0.2 gram is dissolved in 25 milliliters of water) aqueous solution and start to react, react and add 5 milliliters of ammonium persulfate aqueous solution again after 2 hours, all the other ammonium persulfate aqueous solutions add after continuing reaction 2 hours, After the reaction continued for 2 hours, the temperature was raised to 80° C. and the reaction was completed for another 2 hours. Finally, monodisperse polymer latex particles with a monodispersity index less than or equal to 0.005 and a partic...

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Abstract

The invention relates to a kind of polymer colloidal photon crystal membrane with large sized photon band-gap locate in the near-infrared area and its preparation and application. It covers the large sized monodisperse polymer latex particle emulsion on the substrate to achieve cyclical orderly arranged three-dimensional photonic crystal membrane which is spelled with the large sized monodisperse polymer latex particles in the form of face-center cube. The monodisperse polymer latex particle is achieved from the process of polymerization of numbers of the polymer latex particles with hard core-soft shell structure. The size of the monodisperse polymer latex particle ranges from 400 to 1200nm, and the polydispersity index is less than or equal to 0.005. According to the size of monodisperse polymer latex particles, the photonic band gap of the latex photonic crystal membrane can be distributed in the near infrared different band of 800~30000nm.

Description

technical field [0001] The invention belongs to the technical field of preparation of colloidal photonic crystal films, in particular to a polymer colloidal photonic crystal film with a large photonic bandgap in the near-infrared region and a preparation method thereof, as well as its application in anti-radiation coatings; One-step polymerization method to prepare monodisperse polymer latex particles with large particle size. Background technique [0002] Colloidal photonic crystal materials refract or diffract light with a periodic structure formed by the regular arrangement of monodisperse latex particles to achieve special regulation of light. Depending on the size of the periodic arrangement, the wavelength of the modulated light is different. Correspondingly prepared colloidal crystals have different application fields. In the usual patent literature, colloidal photonic crystal films are mainly used in filters (such as CN: 01105105.1, CN: 98110990.X), photoelectric s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/18C08F2/22C08F212/08C08F2/38C09D5/33
Inventor 梁杰王京霞宋延林江雷刘必前
Owner INST OF CHEM CHINESE ACAD OF SCI
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