A photochromic material with fast response time and wide response range and preparation method thereof

A technology of photochromic materials and response range, which is applied in the direction of color-changing fluorescent materials, organic chemical methods, chemical instruments and methods, etc., to achieve the effects of environmental friendliness, easy availability of raw materials, and short response time

Active Publication Date: 2020-12-29
QINGDAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although a lot of progress has been made in the research of hybrid photochromic materials, for example, 201110257499.0 discloses an inorganic / organic hybrid photochromic material and its preparation method and application, involving benzylviologen bismuth chloride-based inorganic / organic hybrid Synthesis method and application of photochromic compound, benzyl viologen bismuth chloride-based inorganic / organic hybrid photochromic compound has excellent photochromic performance, under the irradiation of ultraviolet and visible light, it changes color quickly, and can be heated or placed in a dark room , Fading is also fast, the material can be used in optical information storage, protective decoration, anti-counterfeiting and authentication, confidentiality, optical switching devices, optical information converters, photochromic sun lenses for radiation protection, film materials and other fields; but Designing and synthesizing hybrid photochromic materials based on non-photochromic components, especially those with fast light effects, remains extremely challenging

Method used

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  • A photochromic material with fast response time and wide response range and preparation method thereof
  • A photochromic material with fast response time and wide response range and preparation method thereof
  • A photochromic material with fast response time and wide response range and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] In this example, 0.081g of zinc oxide, 0.104g of lithium fluoride and 0.510g of hydroxyethylidene diphosphonic acid monohydrate were added to a 20mL polytetrafluoroethylene-lined stainless steel reactor and dissolved in 5mL of water, and 0.05 g TPT, after fully stirring, seal the stainless steel reaction kettle with the reaction solution, and crystallize it in an oven at 145°C for 7 days. After the reaction is completed, take out the stainless steel reaction kettle and let it cool naturally at room temperature. The crystals were removed and washed repeatedly with deionized water for 5 times, and dried at room temperature to obtain colorless rod-like crystals.

[0027] In this example, a single crystal diffraction test was carried out on the prepared colorless rod-shaped crystals, and the data analysis showed that the obtained compound had a 3D layered columnar structure, in which HEDP chelated-bridged Zn 2+ A 2D layer is formed, and the terminal TPT ligand passes throug...

Embodiment 2

[0029] In this example, 0.081g of zinc oxide and 0.104g of lithium fluoride were added to a 20mL polytetrafluoroethylene-lined stainless steel reactor and dissolved in 5mL of water, and 0.55mL of hydroxyethylidene diphosphonic acid (60% aqueous solution) was added while stirring. And 0.05gTPT, after fully stirring, the stainless steel reaction kettle that reaction liquid is housed is sealed, crystallizes in the oven of 145 ℃ for 7 days, after the completion of the reaction, through the method of cooling, washing and drying as in Example 1, the obtained The characteristics and results of the target product are the same as in Example 1.

Embodiment 3

[0031] In this embodiment, 0.081g of zinc oxide and 0.189g of oxalic acid dihydrate were added to a 20mL polytetrafluoroethylene-lined stainless steel reactor and dissolved in 5mL of water, and 0.15mL of hydroxyethylidene diphosphonic acid (60% aqueous solution) was added while stirring. ) and 0.05g TPT, after fully stirring, the stainless steel reaction kettle with the reaction solution was sealed, crystallized in an oven at 145°C for 7 days, after the reaction was completed, through the methods of cooling, washing and drying as in Example 1, The various characterizations and results of the target product obtained are the same as in Example 1.

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Abstract

The invention belongs to the technical field of organic-inorganic hybrid material synthesis, and particularly relates to a photochromic material with short response time and wide response range and apreparation method thereof. Through the assembly study on electron-lack polypyridine units, rich-electron organic phosphonic acid and zinc sources, a hybrid photochromic material with excellent performance is prepared; the photochromic material is of a 3D layered columnar structure, wherein organic phosphonic acid is connected with Zn <2+> to form a 3D layer; TPT is used as a column; the [-ED-EA-ED-EA-] arrangement mode is favorable for the realization of photochromic performance; in addition, the compound has wide light response range, color change capable of being seen by naked eyes, ultrashort response time in a specific wavelength range, and long-life charge separation state during the illumination. The preparation process is simple; the principle is scientific; the raw materials can be easily obtained; the cost is low; the environmental-friendly effect is achieved; the prepared photochromic material has wide light response range and short response time.

Description

Technical field: [0001] The invention belongs to the technical field of synthesis of organic-inorganic hybrid materials, in particular to a hybrid photochromic material with fast response time and wide response range and a preparation method thereof. Background technique: [0002] Photochromism means that the molecular structure of certain compounds will change under the action of light of a certain wavelength and intensity, resulting in a corresponding change in the absorption peak of light, that is, the color, and this change is generally reversible. Photochromic materials have the characteristics of reversible switching between two stable states with different colors and electronic / molecular structures. Beams, biological imaging, biological activity control, liquid crystal morphology control, molecular machines and many other aspects have shown broad application prospects. Inorganic-organic hybrid photochromic materials (hereinafter referred to as hybrid photochromic mat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F3/06C09K9/02
CPCC07B2200/13C07F3/003C09K9/02C09K2211/188
Inventor 韩松德王国明刘会峦马玉娟
Owner QINGDAO UNIV
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