Electrically expandable colloidal crystal thin film preparation method

A technology of colloidal crystals and thin films, which is applied in the field of preparation of colloidal crystal thin films, can solve the problems of difficult preparation of electro-expandable polymer materials, and achieve excellent electrochromic performance, wide discoloration range and good repeatability

Active Publication Date: 2017-06-09
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention solves the problem of difficult preparation of existing electrically expandable polymer materials, and provides a method for preparing electrically expandable colloidal crystal films

Method used

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  • Electrically expandable colloidal crystal thin film preparation method
  • Electrically expandable colloidal crystal thin film preparation method
  • Electrically expandable colloidal crystal thin film preparation method

Examples

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specific Embodiment approach 1

[0025] Embodiment 1: A method for preparing an electrically expandable colloidal crystal film in this embodiment is carried out in the following steps:

[0026] 1. Preparation of monodisperse polystyrene microspheres:

[0027] Add ultra-pure water into the three-port reactor, turn on the condensing circulating water, and use a mechanical stirrer to stir the ultra-pure water at the same time, and heat the three-port reactor to a temperature of 50°C with a super constant temperature water bath at a speed of 300rpm-3000rpm ~100°C, then pass nitrogen into the three-port reactor to remove the oxygen in the system, add styrene into the three-port reactor, then add potassium persulfate solution with a mass percentage of 1% to 50%, and react for 12h to 48h. Obtain monodisperse polystyrene microspheres with a particle size of 200nm to 1000nm;

[0028] The volume ratio of described styrene and ultrapure water is 1:(30~100); The volume ratio of described styrene and mass percentage is 1...

specific Embodiment approach 2

[0041] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the volume ratio of styrene and ultrapure water described in step 1 is 1:(50-100). Others are the same as in the first embodiment.

specific Embodiment approach 3

[0042] Specific embodiment three: what this embodiment is different from one of specific embodiment one or two is: the volume ratio of the potassium persulfate solution of 1%~50% is 1:( 0.02~0.1). Others are the same as in the first or second embodiment.

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Abstract

The invention relates to a colloidal crystal thin film preparation method, in particular to an electrically expandable colloidal crystal thin film preparation method and solves the problem of difficulty in preparation of existing electrically expandable polymer materials. The method includes: step one, monodispersed polystyrene microsphere preparation; step two, ferrocenyl derivative synthesis; step three, electrically expandable colloidal crystal material preparation. The method is used for preparing electrically expandable colloidal crystal thin films.

Description

technical field [0001] The invention relates to a preparation method of a colloidal crystal thin film. Background technique [0002] Colloidal crystals are inorganic or organic colloidal microspheres with a size of 100nm to several microns that self-assemble under the action of a driving force to form a two-dimensional or three-dimensional ordered structure. This ordered colloidal microsphere structure Often referred to as colloidal crystals, photonic crystals, or synthetic opal structures. Because of its excellent optical properties, colloidal crystals have become the basic material of a new generation of optoelectronic devices; they can also be used as an ideal model system for the following basic phenomena, and can be used for mechanism research on hot issues such as dissolution processes and phase transition processes; in addition, colloidal crystals themselves It can also be used as a template, perfectly integrated with evaporation and photolithography techniques, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/18C08F112/08C08F2/22C08F4/30C08L25/06C08K5/56
CPCC08F112/08C08J5/18C08J2325/06C08K5/56C08L2203/16C08F2/22C08F4/30C08L25/06
Inventor 赵九蓬华春霞杨大春侯帅张盼盼徐洪波李垚
Owner HARBIN INST OF TECH
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