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A nitrogen-containing conjugated organic microporous polymer, preparation method and application

A microporous polymer, conjugated technology, applied in separation methods, chemical instruments and methods, educts, etc., can solve problems such as low iodine adsorption capacity, limited application, etc., achieve good porous properties, less reuse, and broad application Foreground effect

Inactive Publication Date: 2019-03-26
JILIN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, their limited adsorption capacity leads to low iodine adsorption capacity, which greatly limits the application of this material in iodine adsorption.

Method used

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  • A nitrogen-containing conjugated organic microporous polymer, preparation method and application
  • A nitrogen-containing conjugated organic microporous polymer, preparation method and application
  • A nitrogen-containing conjugated organic microporous polymer, preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] In this embodiment, a nitrogen-containing conjugated organic microporous polymer, the specific preparation process is as follows: 2 ,N 4 ,N 6 - Tris(4-bromophenyl)-1,3,5-triazine-2,4,6-triamine (147.8mg, 0.25mmol) and 1,4-diethynylbenzene (70.6mg, 0.56mmol) as Comonomers, under the protection of Pd(0) as catalyst and nitrogen, anhydrous DMF and triethylamine as solvent, reacted at 120°C for 48h, and prepared a conjugated microporous polymer material containing N, denoted as NT- POP-1: The prepared polymer material was directly pyrolyzed at 800°C for 2 hours under the protection of nitrogen to obtain a nitrogen-containing conjugated organic microporous polymer, which was designated as NT-POPs@800-1.

Embodiment 2

[0029] In this embodiment, a nitrogen-containing conjugated organic microporous polymer, the specific preparation process is as follows: with N 2 ,N 4 ,N 6 - Tris(4-bromophenyl)-1,3,5-triazine-2,4,6-triamine (147.8mg, 0.25mmol) and 1,4-diethynylbenzene (70.6mg, 0.56mmol) as Comonomer, under Pd(0) as catalyst and nitrogen protection, anhydrous DMF and triethylamine as solvent, reacted at 120°C for 48h, recorded as NT-POP-2; prepared polymer material, in Under the protection of nitrogen, the nitrogen-containing conjugated organic microporous polymer was obtained by direct pyrolysis at 800 °C for 2 h, which was designated as NT-POPs@800-2.

Embodiment 3

[0031] In this embodiment, a nitrogen-containing conjugated organic microporous polymer, the specific preparation process is as follows: 2 ,N 4 ,N 6-Tris(4-bromophenyl)-1,3,5-triazine-2,4,6-triamine (147.8mg, 0.25mmol) and 1,3,5-triethynylbenzene (56.6mg, 0.375mmol ) as a comonomer, with Pd(0) as a catalyst and under the protection of nitrogen, anhydrous DMF and triethylamine as a solvent, reacted at 120°C for 48h, and recorded as NT-POP-3; the prepared polymer material , under the protection of nitrogen, directly pyrolyzed at 800℃ for 2h to obtain a nitrogen-containing conjugated organic microporous polymer, denoted as NT-POPs@800-3.

[0032] The synthesis process of the polymer provided by the above-mentioned embodiments 1-3 is shown in formula 1:

[0033]

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Abstract

The invention discloses a nitrogen-containing conjugated organic microporous polymer and belongs to the technical field of adsorption material preparation. Specifically, N<2>,N<4>,N<6>-tris(4-bromophenyl)-1,3,5-triazine-2,4,6-triamine and alkynylphenyl are utilized as comonomer; under catalysis of Pd(0), coupling is performed through Sonogashira; then high-temperature pyrolysis is performed in 700 to 820 DEG C to obtain the nitrogen-containing conjugated organic microporous polymer. The prepared nitrogen-containing conjugated organic microporous polymer disclosed by the invention has the characteristics of large specific surface area, narrow pore size distribution, high physical and chemical stability, low framework density and the like and shows excellent adsorption ability on carbon dioxide and iodine.

Description

technical field [0001] The invention belongs to the technical field of adsorption material preparation, and in particular relates to a nitrogen-containing conjugated microporous polymer, a preparation method and an application. Background technique [0002] For a long time, due to the continuous consumption of fossil fuels in human life and industrial production, the emission of carbon dioxide has been increasing, which has greatly polluted the living environment and ecological system of human beings. At present, global warming has become an important environmental problem that human beings need to solve urgently, among which the high concentration of carbon dioxide is the main reason. Compared with other environmental problems, the emission of carbon dioxide has a large impact space and a long time, so it is very difficult to solve. Mankind is urgently seeking new clean energy to replace fossil fuels, thereby reducing the concentration of carbon dioxide in the atmosphere. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G61/12B01J20/26B01J20/30B01D53/02
CPCB01D53/02B01D2253/202B01D2257/202B01D2257/504B01J20/262B01J2220/4812C08G61/122C08G2261/18C08G2261/3221C08G2261/415C08G2261/592C08G2261/598Y02C20/40Y02P20/151
Inventor 许彦红崔迪刘洺含
Owner JILIN NORMAL UNIV