A kind of soluble hyperbranched microporous organic polymer, its preparation method and application

A technology for polymers and compounds, applied in the directions of alkali metal compounds, chemical instruments and methods, separation methods, etc., can solve the problems of complex routes, difficult product properties to control, and high production costs, and achieve high specific surface area, easy operation, and low cost. Effect

Active Publication Date: 2019-08-30
HUAZHONG UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of the above defects or improvement needs of the prior art, the present invention provides a soluble hyperbranched microporous organic polymer, its preparation method and application, the purpose of which is to select a cheap rigid monomer unit diphenylhalomethane Compounds are used as raw materials to undergo polymerization reactions to obtain soluble microporous organic polymers with hyperbranched structures, thereby solving the technical problems of high production costs, complicated routes, and difficult control of product properties in existing soluble porous polymer materials

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  • A kind of soluble hyperbranched microporous organic polymer, its preparation method and application
  • A kind of soluble hyperbranched microporous organic polymer, its preparation method and application
  • A kind of soluble hyperbranched microporous organic polymer, its preparation method and application

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[0045] In the preparation method of the present invention, different diphenylhalomethane compounds can be used to obtain soluble microporous organic polymers containing different hyperbranched structures; changing the reaction time can improve the molecular weight, solubility and pore structure of the product. control.

[0046] The soluble hyperbranched microporous organic polymer provided by the present invention can be used as a gas storage material, a gas separation membrane or a chemical sensor due to its good solubility, unique fluorescence characteristics, high specific surface area and gas adsorption capacity. Material. As a gas storage material, the soluble hyperbranched microporous organic polymer can be used as a hydrogen storage material, a carbon dioxide capture and storage material and a methane storage material.

[0047] The preparation method of the hyperbranched microporous organic polymer provided by the present invention is simple and efficient, with low cos...

Embodiment 1

[0052] Add 960μL (1.19g) of dichlorodiphenylmethane into 5mL of 1,2-dichloroethane at 25°C, mix well and add 6.67g of anhydrous AlCl 3 , and then the temperature was slowly raised to 80°C, and the reaction was carried out at this temperature for 4 hours. After the reaction was finished, a reddish-brown oily crude product was obtained. The crude product was washed with dilute hydrochloric acid and methanol, and repeated three times to remove the residual solvent and catalyst. Then, the obtained solid was subjected to Soxhlet extraction with methanol for 48 hours, and finally dried under reduced pressure, and collected A soluble hyperbranched microporous organic polymer is obtained.

[0053] attached figure 1 The molecular structure diagram of the soluble hyperbranched microporous organic polymer prepared in Example 1 is given, which has an extended large π-conjugated skeleton, and the central carbon atom of the monomer unit is polymerized outward to form a hyperbranched molecu...

Embodiment 2

[0055] Add 890 μL (1.01 g) of diphenylchloromethane to 2 mL of nitrobenzene at 30 ° C, mix well and add 2.34 mL of anhydrous SnCl 4 , and then the temperature was slowly raised to 160°C, and the reaction was carried out at this temperature for 24 hours. After the reaction was finished, a reddish-brown oily crude product was obtained. The crude product was washed with dilute hydrochloric acid and methanol, and repeated three times to remove the residual solvent and catalyst. Then, the obtained solid was subjected to Soxhlet extraction with methanol for 72 hours, and finally dried under reduced pressure, collected A soluble hyperbranched microporous organic polymer is obtained.

[0056] Figure 11 , Figure 12 , Figure 13 , Figure 14 , Figure 15 and Figure 16 Respectively the molecular structure figure, infrared spectrum, 1 H liquid nuclear magnetic spectrum, gel permeation chromatography, fluorescence emission spectrum and thermogravimetric curve, Figure 17 and F...

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Abstract

The invention belongs to the technical field of new materials and particularly relates to a soluble hyperbranched micropore organic polymer as well as a preparation method and application thereof. Thepreparation method of the soluble hyperbranched micropore organic polymer comprises the steps of dissolving a diphenyl halogenated methane compound as a raw material into an organic solvent so as toobtain a raw material mixing solution, generating Friedel-Crafts reaction under the catalysis of Lewis acid, and after the reaction is finished, carrying out separation and purification, so as to obtain the soluble hyperbranched micropore organic polymer. The preparation method provided by the invention is simple, efficient and low in cost, the product is stable in performance, and the reaction time can be adjusted according to different demands; by controlling the molecular weight, solubleness and hole structure of the product, the prepared soluble hyperbranched micropore organic polymer hasgood solubleness, excellent fluorescence characteristic, strong heat stability, and the product settled in a reverse solvent and the product dissolved in a good solvent have relatively high specific surface areas.

Description

technical field [0001] The invention belongs to the technical field of new materials, and more specifically relates to a soluble hyperbranched microporous organic polymer, its preparation method and application. Background technique [0002] At present, various types of microporous materials and organic frameworks have been developed. However, the solubility problem is still a big challenge in practice because most of these materials are insoluble, making their processing and practical application very difficult. In recent years, soluble self-polymerizing microporous polymers (PIMs) and conjugated microporous polymers (CMPs) have been developed. The first case of soluble CMP was prepared by the Cooper research group. They used tetrabromo-substituted pyrene as a monomer and copolymerized it with tert-butyldibromopyrene containing a large substituent. The molecular weight was controlled by adjusting the amount of the latter introduced. Solubility of the product is achieved. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G83/00B01J20/26B01J20/28B01J20/30B01D53/02G01N21/64
CPCY02C20/40Y02P20/151
Inventor 谭必恩杨玉皖金尚彬任俊刘云飞
Owner HUAZHONG UNIV OF SCI & TECH
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