A metallocene-containing porous polymer material and its preparation method

A technology of porous polymers and metallocene compounds, which is applied in the field of preparation of porous polymer materials, can solve the problems of limited application of new materials, weak interaction force, adsorption capacity, adsorption rate and selectivity cannot meet practical application, etc. The effect of good gas adsorption performance and structural stability, mild conditions, good chemical stability and thermal stability

Active Publication Date: 2021-10-01
THE NAT CENT FOR NANOSCI & TECH NCNST OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] One disadvantage of organic porous materials in terms of environment and energy applications is that the framework material composed of organic elements and the adsorbed molecules (such as CO 2 、CH 4 、H 2 etc.) The interaction force between them is very weak, and the adsorption capacity, adsorption rate and selectivity cannot meet the practical application
And the monotonous elemental composition limits the application of new materials in other fields (such as chemical catalysis, photoelectric materials)

Method used

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  • A metallocene-containing porous polymer material and its preparation method
  • A metallocene-containing porous polymer material and its preparation method
  • A metallocene-containing porous polymer material and its preparation method

Examples

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Embodiment 1

[0059] This embodiment relates to a method for preparing a metallocene, comprising the following steps:

[0060] 1) At room temperature, add 0.372g of ferrocene, 1.954g of anhydrous aluminum trichloride, 1.066g of dimethoxymethane and 20mL of 1,2-dichloroethane into a two-necked round-bottomed flask equipped with a reflux condenser and a thermometer. alkyl. After the obtained mixture was uniformly stirred by magnetic force, the temperature was raised to 45° C. under the protection of nitrogen, and kept at this temperature for 5 hours. Then the temperature was raised to 80°C and stirring was continued for 19 hours.

[0061] 2) After the reaction is terminated and cooled to normal temperature, add 50 mL of ethanol and stir for 1 hour, collect the crude product by filtration, wash with 10 wt% dilute hydrochloric acid and ethanol until the filtrate is colorless, and finally extract with ethanol in a Soxhlet extractor for 1 day . After drying under reduced pressure at 70°C, a br...

Embodiment 2

[0067] This embodiment relates to a method for preparing a metallocene, comprising the following steps:

[0068] 1) At room temperature, add 0.510g cyclopentadiene manganese tricarbonyl, 0.195g benzene, 1.217g anhydrous ferric chloride, 0.571g dimethoxymethane into a two-necked round bottom flask equipped with a reflux condenser and a thermometer and 20 mL of 1,2-dichloroethane. After the obtained mixture was uniformly stirred by magnetic force, the temperature was raised to 45° C. under the protection of nitrogen, and kept at this temperature for 5 hours. Then the temperature was raised to 80°C and stirring was continued for 19 hours.

[0069] 2) After the reaction was terminated and cooled to normal temperature, 50 mL of methanol was added and stirred for 1 hour. The crude product was collected by filtration, washed with methanol until the filtrate was colorless, and finally extracted with methanol in a Soxhlet extractor for 1 day. After drying under reduced pressure at 7...

Embodiment 3

[0075] This embodiment relates to a method for preparing a metallocene, comprising the following steps:

[0076] 1) At room temperature, add 0.255g cyclopentadiene manganese tricarbonyl, 0.195g benzene, 1.217g anhydrous ferric chloride, 0.571g dimethoxymethane into a two-necked round bottom flask equipped with a reflux condenser and a thermometer and 20 mL of 1,2-dichloroethane. After the obtained mixture was uniformly stirred by magnetic force, the temperature was raised to 45° C. under the protection of nitrogen, and kept at this temperature for 5 hours. Then the temperature was raised to 80°C and stirring was continued for 19 hours.

[0077] 2) After the reaction was terminated and cooled to normal temperature, 50 mL of methanol was added and stirred for 1 hour. The crude product was collected by filtration, washed with methanol until the filtrate was colorless, and finally extracted with methanol in a Soxhlet extractor for 1 day. After drying under reduced pressure at 7...

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Abstract

The invention relates to a method for preparing a metallocene-containing porous polymer material. The main steps are: using a metallocene compound or a mixture of a metallocene compound and an aromatic compound as a raw material, under the action of a Lewis acid catalyst, through Friedel-Crafts reaction A metallocene-containing porous polymer is prepared. The pore size, pore volume and specific surface area of ​​the metallocene-containing porous polymer material prepared by the invention are adjustable, and the obtained porous network is interconnected by covalent bonds, and has good chemical stability and thermal stability. The introduction of metals and heteroatoms into the porous polymer network can increase the interaction force between the polymer skeleton and the adsorbed molecules, thereby increasing the adsorption capacity and speed of carbon dioxide, methane, hydrogen, sulfur dioxide, dyes, etc.

Description

technical field [0001] The invention belongs to the technical field of new materials, and relates to a preparation method and application of a metallocene-containing porous polymer material. Background technique [0002] Against the backdrop of increasing global demand for fossil energy and increasingly serious environmental pollution, it is imminent to develop environmentally friendly new energy sources and new materials. In recent years, polymeric porous materials obtained through self-assembly or coupling reactions of building blocks have attracted great attention from academia and industry. Porous polymers, that is, polymers with high specific surface area and a large number of pore structures, have attracted extensive attention due to their significant roles in gas adsorption and separation, heterogeneous catalysis, and energy storage. [0003] Due to its designability, high specific surface area, small bulk density and easy functionalization, organic porous polymers h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G83/00
CPCC08G83/00
Inventor 韩宝航梁海鹏
Owner THE NAT CENT FOR NANOSCI & TECH NCNST OF CHINA
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