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1,3,5-triazinyl nanopore organic aromatic heterocyclic polymer and preparation method thereof

A technology of polymers and nanopores, applied in separation methods, chemical instruments and methods, educts, etc., can solve problems such as difficult to achieve practical application and low adsorption capacity, achieve good adsorption performance and selective adsorption performance, and be widely used foreground effect

Active Publication Date: 2013-04-24
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the 1,3,5-triazine skeleton polymer reported by Ji Young Chang et al. 0 =10 -5 ~10 -2 ), CO under the condition of 298K 2 The highest adsorption capacity is only 4.0cm 3 / g, however the CO of this polymer 2 The adsorption capacity is relatively low [Ho Lim, Min Chul Cha, Ji Young Chang.Macromolecular Chemistry and Physics.2012,13,1385], it is difficult to achieve practical application
So far, the structure of the 1,3,5-triazine-based nanoporous organic polymer reported in this paper has not been published in any published reports

Method used

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  • 1,3,5-triazinyl nanopore organic aromatic heterocyclic polymer and preparation method thereof
  • 1,3,5-triazinyl nanopore organic aromatic heterocyclic polymer and preparation method thereof
  • 1,3,5-triazinyl nanopore organic aromatic heterocyclic polymer and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Add and mix 0.2 parts of 2,4,6-trichloro-1,3,5-triazine and 0.2 parts of triphenylamine in molar ratio. The reaction uses chlorobenzene and nitrobenzene as a mixed solvent, and the entire reaction system is protected by argon. . Under the condition of stirring, add the methanesulfonic acid in the constant pressure dropping funnel dropwise to the reaction system at room temperature for 10 minutes, raise the temperature to 100°C, react for 10h, then cool down to room temperature, add methanesulfonic acid The amount of acid is 15 parts. The above mixed system was directly filtered to obtain a crude polymer product, and then washed with water, ethanol, tetrahydrofuran, acetone, chloroform, and acetone in sequence to obtain a polymer; vacuum-dried at 100°C for 3 days to obtain a polymer powder product.

[0039] The 5% thermal weight loss decomposition temperature of the polymer is 450°C, and the specific surface area reaches 862m 2 / g, the average pore size distribution is...

Embodiment 2

[0043]Add and mix 0.3 parts of 2,4,6-trichloro-1,3,5-triazine and 0.3 parts of tris-(pentaphenyl-tetra-)amine in molar ratio, and react with nitrobenzene as solvent, and the whole reaction The system is protected by nitrogen gas. Under the condition of stirring, anhydrous aluminum chloride is added into the reaction system at room temperature, and the aluminum chloride is added in three batches. The temperature of the system was raised to 50°C, and the reaction lasted for 6 hours, and then it was lowered to room temperature, and the amount of anhydrous aluminum chloride added was 8 parts. The above mixed system was directly filtered to obtain a crude polymer product, and then washed with water, acetone, chloroform, and acetone in sequence to obtain a polymer; vacuum-dried at 130°C for 1 day to obtain a polymer powder product.

[0044] The 5% thermal weight loss decomposition temperature of the polymer is 490°C, and the specific surface area reaches 1010m 2 / g, the average po...

Embodiment 3

[0047] Add and mix 0.4 part of 2,4,6-trichloro-1,3,5-triazine and 0.3 part of tetraphenylmethane in molar ratio, react with bromobenzene as solvent, and protect the whole reaction system with argon. Under the condition of stirring, trifluoromethanesulfonic acid was added dropwise to the reaction system at room temperature, trifluoromethanesulfonic acid was added dropwise at 0°C for 30 minutes, the temperature was raised to 25°C, and the reaction lasted for 24h. The amount of sulfonic acid is 5 parts. The above mixed system was directly filtered to obtain a crude polymer product, and then washed with water, tetrahydrofuran, chloroform, and acetone in sequence to obtain a polymer; vacuum-dried at 100°C for 2 days to obtain a polymer powder product.

[0048] The 5% thermal weight loss decomposition temperature of the polymer is 280°C, and the specific surface area reaches 750m 2 / g, the average pore size distribution is 3nm, in the low pressure area (P / P 0 =10 -5 ~10 -2 ), CO...

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Abstract

The invention discloses a 1,3,5-triazinyl nanopore organic aromatic heterocyclic polymer and a preparation method thereof. The 1,3,5-triazinyl nanopore organic aromatic heterocyclic polymer is prepared from 2,4,6- trichlorine-1,3,5-triazine andaromatic compounds through Friedel-Crafts reaction in the presence of catalyst of lewis acid. The prepared polymer has controllable pore size and high specific surface area as well as CO2 capturing ability, good heat stability and chemical stability. The polymer has an important application value in gas storing, especially in CO2 capturing and has a wide application prospect in many fields such as field of catalytic supports and selective separation of ion.

Description

technical field [0001] The present invention relates to a high CO 2 An organic nanoporous polymer with capture capability and a preparation method thereof, in particular to a 1,3,5-triazine-based nanoporous polymer and a preparation method thereof. Background technique [0002] Due to their inherent excellent properties such as large specific surface area, narrow pore size distribution, high chemical stability and low skeletal density, nanoporous organic polymers are used in many fields such as catalyst supports, selective separation of gases, and gas storage. It has become a research hotspot at home and abroad [(1) Davis ME.Nature 2002,417:813–821.(2)Budd P M.Science 2007,316:210-211.(3)Kuhn P, Kruger K , Thomas A et al. Chem. Commun. 2008, 44:5815-5817]. Polymers containing 1,3,5-triazine skeleton are widely used in high-performance engineering plastics, electron transport materials and separation functions because of their high temperature resistance, high stability, go...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G61/12B01J20/26B01J20/30B01D53/02
CPCY02C20/40Y02P20/151
Inventor 喻桂朋潘春跃熊绍辉向璐顾帅王雪源
Owner CENT SOUTH UNIV
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